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Centurion Arms C4 M-LOK Handguard - 12"/Front Sight Cutout - 0819-12P

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MSRP: $350.00
Original price was: $332.50.Current price is: $269.95.

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Only 5 left in stock

SKU: 6628 Categories: , , ,
Description

Centurion Arms LLC is happy to announce the C4 MLOK® rail.

C4 MLOK 12in FSP (For Carbine Gas FSB’s)

The MLOK C4 rail system is based off the patented quad rail version. 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. 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. This design allows the installation of the rail on an upper assembly without removing the front sight post or permanently attached muzzle devices.
 
Features
Material: 6061 T6
Finish: type 3 hard coat anodized
Weight: 9.8 oz with screws — 1.1oz more with standard barrel nut
Length: 12.565in
Height: 2.38
Inside diameter: 1.37
Rails: 1913 spec rail
Fasteners: grade 8 bolts with phosphate finish
MADE IN USA
Weight 9.76 oz
Dimensions 14 × 3 × 3 in
MPN 0819-12P
UPC 6628
P65 Warning Message
P65 Warning Message

Compliance

NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.

Customer Reviews

2.5 Based on 2 Reviews
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Customer Photos
Centurion Arms C4 M-LOK Handguard - 12"/Front Sight Cutout - Customer Photo From Johni
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  • fsb sling swivel tabs
  • fsb hand guard
  • Colt
  • rail
  • barrel nut
  • Hand
J
John
US US
06/14/2025

Almost perfect

This fsb hand guard is well made, locks up tight on the standard barrel nut and is light. It’s thin and feels great in hand. The fsb sling swivel tabs will need to be ground down for it to fit properly. The top rail is slightly lower than my Colt upper. Despite this, overall excellent handguard.

AR15Discounts.com Centurion Arms C4 M-LOK Handguard - 12/Front Sight Cutout Review
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WILLIAM W.
US US
I recommend this product
05/09/2022

Out of Spec

The rail I purchased is clearly a blem - tooling marks all over the handguard. However, it wasn’t labeled as a blem. I mounted the handguard to a Centurion and a Colt upper. The handguard 1913 sat 0.020” lower than the 1913 on both uppers. I will be contacting Centurion about this.

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