00 (Intro Price $263. 38" Inside Diameter: 1. Most time consuming part was removing the delta ring, hand guard retaining clip, and cutting off the sling tabs, smoothing them out and re-bluing them. 97 Best Rated. . 00. One thing to consider if you decide to go with a completely new rail is that you will need a new crush washer, a new lo-pro gas block and possibly a new gas tube. Love he 12. $139. Centurion Arms C4 Rail System - Mid Cutout . 56 mm, M4) is a 5. Geissele 15" Super Modular Rail MK8 M-LOK, DDC ‒ 05-286S . It is a lightweight, rugged, 2-piece free float rail that when installed gives the uppers a continuous 12o’clock rail and MLOK slots for the 3,6, and 9 o’clock positions. 00 In Stock C4 M-LOK Rail (Carbine Cut) $280. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. The C4 allows for a rigid rail platform and features the M-LOK interface at 3 positions. Actual length when measured to flare is 7. The C4 allows for a rigid rail platform and features the M-LOK interface at 3 positions. 83. ERGO Ultra-Lite S Key Mod Replacement Handguard-Dark Earth - - 4807-DE. It is a lightweight, rugged, 2-piece free float rail that when. 99 Blazin' Deal. S. Features. I have no experience with the larue rail, but I do have a centurion carbine cut-out rail on an sbr. 00. View ProfileThe M-LOK® C4 rail system is based off the patented quad rail version. I measured the (C4) anti-rotation tab area on a MUR and a couple Aeros. 95 $ 28. This is a full installation video for the Centurian Arms C4 Carbine Cutout Quadrail. The C4 system is. 45. Description. Posted: 4/25/2017 4:49:26 PM EST. 5" middy Noveske Afghan X3, 10. RealeyesRealizeRealLies BCM 16" RECCE MK2 DkBrz, Custom Mk12 Mod1 built by Monty LeClair, 16" Middy w/ HCS RECCE barrel, A5, Young NM BCG, SSP, Geissele NM rail, Ops Inc. 95. 5 inch rifle? i will be shaving a fsb and want to put a rail on it. The most common weapon accessories can be mounted to these AR Handguards & Forends from Centurion Arms. 56 NATO AR-15 Rifle - 18". Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. This design allows the installation of the rail on an. The caliber is much better with shorter barrels and even in 16" benefits from the increased dwell offered by shorter pistol gas systems. Yup. 6 oz. This design allows the installation of the. Mission First Tactical Tekko Metal AR Carbine 7in Drop In Rail System, AR-15, M-LOK, 7 in, Black, TMARCMRS, MPN:. PSA 16" Mid-Length Pencil 5. Gettin' down innagrass. View Profile. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Reviews. Cause I want a factory built upper with the carbine cut out. 5" Centurion MLok Rail? If one doesn’t have a front sight, or if one is building an AR from scratch, or if the length of one’s barrel precludes the >10. 50. 00. Out of Stock. The Centurion patented C4 rail system is a lightweight, rugged, 2 piece free float rail that when installed gives the uppers a continuous 12o'clock rail. 95: JPROS: 45° Rail Offset Adapter: $62. Installed my Centurion C4 MLOK Carbine cut rail on Colt 6933 11. Price: USD 280 Posted: 10/14/2021 1:18:10 PM EST. Finish: type 3 hard coat anodized. Skinniest rail of the 3, great feeling gun, mlok and tons of space on rail. VISM AR15 M-Lok Handguard/ Two Piece/ Drop In Fit/ Carbine Extended Handguard Length/ 13. 2 models Geissele 13. Mil-Spec M5 Rifle RAS for M16A4. This design allows the installation of the rail on an upper assembly without removing the front sight post or permanently attached muzzle devices. 5" Mid Length Upper Group; 14. 00) Pre-Order, Shipping by Mid-March C4 M-LOK Rail (12in) – $310. 5" in FDE. The M-LOK® C4 rail system is based off the patented quad rail version. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. M-LOK Series Hand Guard Length: Carbine. Quick view Add to Cart. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Sand cuts are added for increased reliability in harsh conditions. Thread: NEW Centurion Arms C4 m-lok rail. The MLOK C4 rail system is based off the patented quad rail version. It measures 9. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. The Ruger PC Carbine has been out for a while. 223 based AR platform systems. I'm still on the fence on whether I'm gonna go with the new C4 Carbine cutout or the 12" FSP rail. Their other MlLOK rail is base on the CMR system which is single piece and utilizes a proprietary barrel nut. Stickman. The C4 Rail System is renowned for its durability, accuracy, and lightweight design. C4 MLOK CARBINE CUT. I am prior service, a full time LEO, firearm instructor, armorer, TL, martial. It is a lightweight, rugged, 2-piece free float rail that when installed gives the uppers a continuous 12o'clock rail and MLOK slots for the 3,6, and 9 o'clock positions. Cut the delta ring assembly and handguard cap off and bolt the handguard on. UTG Pro AR15 Carbine Length Super Slim Drop-in Handguard (48) $64. No messing with BCM or LMT’s insane pins to remove. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. MSRP: $39. 50. It is a lightweight, rugged, 2-piece free float rail that when installed gives the uppers a continuous 12 o’clock rail and M-LOK® slots for the 3, 6, and 9 o’clock positions. Description The Centurion patented C4 rail system is a lightweight, rugged, 2 piece free float rail that when installed gives the uppers a continuous 12o'clock rail. 95. Fixed front are usually not noticeable with most optics or at least not distracting so not a big deal. Features. IR options are available as well. C4 M-LOK Rail (Mid Cut) $320. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Add to Wish List. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Thread: NEW Centurion Arms C4 m-lok rail. 00 (Intro Price $238. I like the looks of these C4 M-lok , I think I will probably use one of these new C4 handguards. Description Centurion Arms LLC is happy to announce the C4 MLOK® rail. About this product. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. 00. It work. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Centurion Arms C4 Rail Handguard, Carbine Cutout, 9. 56 M-LOK B5 rifle. I really like how slim the design is and how comfortable it is to get a good grip regardless of your preferred shooting style. † NOTE: The receiver-mounted, Picatinny-style rail is designed to accommodate most optics and optic mounts intended for use with Picatinny/ MIL-STD 1913 rails. I will be using a 14. The C4 system is the lightest and most rigid rail that clamps to a standard barrel nut on all AR15, M4, and M16 type weapons systems. Cause I want a factory built upper with the carbine cut out. NYH1. The C4 system is the lightest and most rigid rail that clamps to. With how sweet these drop in rails are, is there a reason not to choose something like the drop in two piece 12" or 12" carbine FSB rail over the normal single piece 10. Save 5% MSRP: $ 280. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Description. The M4 carbine (officially Carbine, Caliber 5. 00 In Stock Newsletter Signup Centurion Arms MLOK CMR rail system is a lightweight,. 5" Mk4 M-LOK Super Modular Rail - DDC. The C4 M-LOK rail is based on Centurion's patented quad rail design. Gun Rail: M-LOK Weight: 12. 5" MM Mid-Length M-LOK Rail This item is currently on order MSRP: $275. B5 Systems Drop-in Midlength Handguard for AR-15. C4 MLOK 12in FSP (For Carbine Gas FSB's) The MLOK C4 rail system is based off the patented quad rail version. 00 (Intro Price $238. While others like the classic aesthetic and simplicity of a drop-in quad-rail type handguard. Material: 6061 T6. An M-LOK Rail System looks like a long tube that has sections cut out along the entire length of the piece and all around the piece, which allows for M-LOK accessories be mounted to many different parts of the system. 99 10% Bonus Bucks. In Stock. I have had 5 C4 rails including the cut outs at one time or another. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Thread: NEW Centurion Arms C4 m-lok rail. Product Identifiers. 5 inch like the. Geissele Mk16 rail 13. I've checked midwest. The M4 is extensively used by the United States Armed Forces, with decisions to largely replace the M16 rifle. 00. 95. View Profile View Forum Posts View Articles Member Join Date Aug 2009 Location. Posted: 7/1/2023 11:38:45 PM EST. $273. A. I’m interested in the the C4 M-LOK Rail (Carbine Cut). 2" Carbine. WTS: LaRue LT271 3-Slot Picatinny Rail, Lo Pro Ind. 00C4 M-LOK Rail (12in Carbine FSP) - BLEM. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. yep, but it's worth the wait!Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. 5" MC Carbine-Length M-LOK Rail. View Details. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. About this product. C4 M-LOK Rail (Carbine Cut) The C4 MLOK rail system is based off the patented quad rail version. Material: 6061 T6. C4 M-LOK Rail (Carbine Cut) – $280. MSRP: $39. He'd like to replace the existing drop in handguard with and extended model, either M-Lok or quad rail, but doesn't like or need the cutout for the fsp. View Details. 56 NATO 1:7 Nitride 15" Lightweight M-Lok Upper w/ No BCG and CH. 00 In Stock C4 M-LOK Rail (12in) $310. $128. Includes BCM M-LOK Compatible Sling Mount, (FREE for a limited time) 1. The MLOK C4 rail system is based off the patented quad rail version. **Please note that some FSBs may need to be modified to fit by. 99. M-lok also available for the same price. Code: K2-HZ-AR15KH-VMARMLCET. It can be assembled/disassembled without removing the front sight post or pinned muzzle devices. 12". 14. 5" M4 Carbine Upper Group;. There is no need to access the rear side of the rail for mounting. 5" Lightweight M-LOK Upper without BCG and CH. For those who want something stronger, seek the CMR. It is a lightweight, rugged, 2-piece free float. Blazin' Deal. BCM. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. 50) Available NOW C4 M-LOK Rail. Anyone have any experience with these rails, or any other standard barrel Mlok rails. The Centurion Arms C4 Rail Lightweight Handguard provides a continuous 1913 rail at 12 o'clock. I learned how to install an M-LOK Picatinny Rail section on my Aero Precision . MSRP: $89. Right To Bear 7. 99 Blazin' Deal. The Daniel Defense Omega M-LOK 2-pc free-float handguard is not a drop-in. Stickman. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. ; 13. 00:. 99 $64. C4 Rail (7in - 12in) $230. Rating: 100%. It is a lightweight, rugged, 2-piece free float rail that when installed gives the uppers a continuous 12o'clock rail and MLOK slots for the 3,6, and 9 oâ clock positions. BCM® PKMR (Polymer KeyMod™ Rail) Carbine Length-FLAT DARK EARTH. TommyG. No messing with BCM or LMT’s insane pins to remove. Will make install extremely easy. $320. When I purchased the rifle it came with the B5 Systems mid-length M-LOK handguard. 00 In Stock Newsletter Signup Centurion Arms' patented C4 rail system is a lightweight, rugged, two piece, free float hand guard to. 125,487 likes · 23 talking about this. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Building my first rifle and need some help. Shop Mission First Tactical EXD Free Float M-LOK Rail System | Up to 16% Off Be The First To Review Mission First Tactical EXD Free Float M-LOK Rail System + Free Shipping over $49. Add to Wish List Add to Compare. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. One new winner* is announced every week! You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news. Color. A prime example of the vertical foregrip, it is shaped to fit the hand with rounded edges and flat sides. The MLOK C4 rail system is based off the patented quad rail version. The C4 system is the lightest and most rigid rail that clamps to a standard barrel nut on all AR15, M4, and M16 type weapons systems. (*Add link from AR15Discounts to this area) Affordability Tiger Rock 7″ Carbine Length Free Float Quad Rail Handguard w/ Barrel Nut – MSRP – $42. Shop MFT Tekko Polymer AR15 Carbine 7" Drop In Rail System | Up to 13% Off Highly Rated on 5 Reviews for MFT Tekko Polymer AR15 Carbine 7" Drop In Rail System + Free Shipping over $49. 20. View Profile View Forum Posts View Articles Member Join Date Jul 2011. (plus sales tax) My G2C was at the FFL in a little over a week. 5 FSB upper that I bought back in the "golden days" for <$400. NoveskeFan Replies: 1 Views: 1275 6/11/2023 8:05 AM Jencountry Parts lot. One Short (1½ M-LOK® slots/ 5 slot Picatinny) and one Medium Length (2½ M-LOK® slots/ 9 slot Picatinny) Picatinny Rail sections. The ability to put a light ahead of the FSP is very handy IMHO. 5in MK14 Super Modular Rail (9) As Low As $275. PSA 16" Midlength 5. Add to Wishlist + Out of stock. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. 5” choice. Centurion Arms. This design allows the installation of the rail on an upper assembly without removing the front sight post or permanently attached muzzle devices. C4 M-LOK Rail (Carbine Cut) – $280. All PREMIUM features, plus: - Access to our constantly updated research database via a private dropbox account (including hedge fund letters, research reports and analyses from all the top Wall Street banks) - Notifications for new posts, breaking news and comment replies (coming soon) - Discord-based chat and commentary rooms (coming. Back Order. But, while that SOCOM report didn’t do KeyMod any favors, the company hasn’t backed out just yet. I have the original C4 Carbine Cutout Rail on my 6920 w/14. . Just go an email announcing the release of their new rail. I appologize in advance for the video being a bit choppy. Turns out I dont care for fixed iron sights. TRYBE Defense AR-15 M-LOK 12in Extra Lightweight Handguard w/ Cut-Away Rail, Flat Dark Earth, 12 Inch, HDG12CR-FDE (46). Hey everybody, so I have the SAINT 5. Finish: type 3 hard coat anodized. 03-15-20, 08:53 #79. Most time consuming part was removing the delta ring, hand guard retaining clip, and cutting off the sling tabs, smoothing them out and re-bluing them. 95. C4 MLOK 12in FSP (For Carbine Gas FSB’s) 4 0 0. The. 4 Options. View Details. 5" Carbine Cut Out Picatinny Rail Handguard. Centurion Arms C4 Rail Handguard Carbine Cutout. The MLOK C4 rail system is based off the Centurion CMR quad rail version. The C4 system is the lightest and most rigid rail that clamps to a standard barrel nut on all AR15, M4, and M16 type weapons systems. 56, less powder volume and a HUGE range of pressures, carbine gas flat out sucks for anything other than supers in a 16". But HOW do you do it? How exactly do you use M-LOK's c. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. It is a lightweight, rugged, 2-piece free float rail that when installed gives the uppers a continuous 12o clock rail and MLOK slots for the 3,6, and 9 o clock positions. Wagner C4 Deflector Cone R20 0390207, R28 0390208, R38 0390209 Fabricantes y proveedores Precio de productos al por mayor GALIN. These Inforce lights are slimline designs made originally for rifles, but they work great as a tactical helmet light as well. TheC4 M-LOK is bringing this design into the modern age. 55″ Optimized Rail $. The AR-15 Handguard uses standard Picatinny rails, allowing you to attach your favorite accessories. View Product . VISM AR15 M-LOK Carbine Handguard (148) $79. Thread Tools. 95. 5" Carbine Cut Out Picatinny Rail Handguard I’ve always liked the C4 rail as a future upgrade for FSB equipped rifles. I can't seem to find a suitable handguard replacemnt for my Colt 6920 with Magpul MOE handguard. An addition to our handguard line up we now have a two piece free float handguard in M-LOK. Description. C4 MLOK MID CUT The MLOK C4 rail system is based off the patented quad rail version. The MLOK C4 rail system is based off the patented quad rail version. 0 Back Order. It is a lightweight, rugged, 2-piece free float rail that when installed gives the. 95: MAG608: Magpul M-LOK® Hand Guard Hand Stop Kit: $23. Morgantown, Indiana – – Centurion Arms LLC is happy to announce the C4 M-LOK® Rail. Guntec USA 10" Slim Octagon 5 KEY MOD Free Float Shark Handguard. Rating: 100%. Looking for a good deal?Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. The M-Lok rail system features elongated slots similar to Magpul’s MOE slots. C4 Carbine Length Cutout Rail, 2 Piece Free Float Rail, Black Finish 0609-CC. $273. Last edited by AAMP84; 01-30-21 at 02:23 . Guntec USA Black Ultra Lightweight Thin Keymod Free Float Handguard. 99 Save Up to $65. C4 Rail (7in - 12in) -BLEM. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. 53. Daniel Defense Omega 7 rail would work, 2 piece that locks into the delta ring via set screws and free floats the barrel so your front handguard cap doesn't matter, available in mlok and pic rail. Posted: 10/14/2021 9:57:24 PM EST [#4] Centurion hands down…and I know I’m going to catch heat for this but the Troy rails are decent too. The C4 is a lightweight, rugged, 2-piece design, it clamps to the OEM AR-15 barrel nut. 5" on the sides, a perfect fit that enhances the overall performance of your weapon. The Centurion Arms C4 Rail fits securely onto a standard barrel nut, allowing for easy installation without the need to remove the front sight post or permanently attached muzzle devices. plus 1. 00 $249. Got it this afternoon, came a day early. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. One of the unique "Sporting Carbine" variants is a custom AR-15, most resembling a shortened Daniel Defense DDM4ISR. Does anyone know if a bayonet can still be mounted if using this rail?They make both the original C4 Rail, Mid Length Cutout Rail Handguard and the new C4 M-LOK Rail (Mid Cut). 95 Save $11. This design allows the installation of the rail on an upper assembly without removing the front sight post or permanently attached muzzle devices. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. from $ 104. This design allows the installation. C4 MLOK CARBINE CUT. It is a lightweight, rugged, 2-piece free float rail that when installed gives the uppers a continuous 12 o’clock rail and M-LOK® slots for the 3, 6, and 9 o’clock positions. Save 5%. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. – C4 M-LOK Rail (Carbine Cut) – $280. Just go an email announcing the release of their new rail. 00 $320. 8 models Aero Precision M5 ATLAS R-ONE M-LOK Handguard (11) As Low As (Save Up to 22%) $171. 95. Description. This design allows the installation of the rail on an upper assembly without removing the front sight post or permanently attached muzzle devices. Here, other accessories can be directly mounted to it with a dedicated. Finish: type 3 hard coat anodized. Save 23 – 27% MSRP: $ 109. 99. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. 50) Available NOW C4 M-LOK Rail (Mid Cut) - $320. NoveskeFan Replies: 1 Views: 1477 6/26/2023 10:26 AM Jencountry SB Tactical Coupon 20% off. The price of liberty is, always has been, and always will be blood: The person who is not willing to die for his liberty has already lost it to the first scoundrel who is willing to risk dying to violate that person. Mil-Spec. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. The M-Lok compatible modular rail, or MCMR for short, is a rock solid choice for new shooters and seasoned vets alike. 00. Save Up to $14. . The Centurion Arms C4 rail is a lightweight rail system which clamps onto standard AR-15 barrel nuts. Centurion Arms C4 M-Lok Handguard - Carbine Pocket 12" $332. CENTURION ARMS C4 M-LOK 12" Cutout Carbine FSP AR15 Rail Front Sight M16 AR-15 MLOK Handguard. The PC Carbine has been well received as it has a retro Marlin Camp 9 rifle feel but updated for modern shooters. Slightly knock down the newly cut edges, just enough to get it smooth. 97. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. 14. Last edited by titsonritz; 01-23-20. In Stock. Rail for hbpw carbine. UTG PRO Super Slim M-LOK Forend for Ruger PC Carbine™. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. 62 MLOK Rail (11. (0) $350. Mintyfresh790. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. 00. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. 01-26-21, 17:00 #191 titsonritz Site Sponsor Join Date Jul 2010 Posts 8,994 Feedback Score 45 (100%) Originally Posted by Redcup I’m in the process of putting together my first. Pretty sure Midwest Industries also makes/made a two piece drop in that is compatible with a triangle cap. Page 3 of 6 First 1 2. ProvenArmsOutfitters. 97. . The C4 is perfect for those that want to stick with a GI barrel or have no choice via a pinned MD. 00 $200. Installed my Centurion C4 MLOK Carbine cut rail on Colt 6933 11. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. $280. This design allows the installation of the. Add to Wishlist + Dirty Bird AR-15 SMRS Handguard – Slim M-LOK Rail System V3. 99 $74. The MLOK C4 rail system is based off the patented quad rail version. The Daniel Defense Omega M-LOK 2-pc free-float handguard is not a drop-in. CENTURION ARMS C4 M-LOK Carbine Length Cut RAIL SYSTEM AR15 2 Piece MLOK Cutout. dms16. 0855286007034. 00. This is my official fan page; if you know me personally, please refrain from using my name here, thank you - StickmanNEW Centurion Arms C4 m-lok rail; If this is your first visit, be sure to check out the FAQ by clicking the link above. 95 to $350 depending on model and finish. Installed my Centurion C4 MLOK Carbine cut rail on Colt 6933 11. 60. Fortis Night Rail™ 556mm Free Float Rail System – M-LOK for AR 15. officerX. Designed to fit Carbines with: MIL-SPEC Barrel Nut, Delta Ring, and front. C4 MLOK MID CUT. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Remember Me? What's New? Forum The forward portion of a midlength FSB is approximately 11 1/8” from the face of the receiver. Many builders prefer maximum versatility, accuracy and comfort using a free-floated M-LOK rail. The machine work and fit & finish is typical Centurion quality. BCM MCMR HANDGUARD.