Z
zNathanGzhappy with it
Reviewed on March 24, 2026Verified with Build
free float feel with no contact on the barrel. great length for my build
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Bravo Company Mfg M-LOK 13" Modular Rail, Black - MCMR13556BLK
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Bravo Company
Overview
The Bravo Company Mfg M-LOK 13" Modular Rail is a free-float handguard designed for the AR-15 platform, providing a stable mounting interface for accessories without adding unnecessary weight. The M-LOK mounting system allows for versatile attachment options, making it easy to customize your setup. This rail is typically found on builds featuring a mid-length gas system and chambered in 5.56 NATO, making it a popular choice for those looking to enhance their rifle's performance and modularity.
Specifications
MPNMCMR13556BLK
PlatformAR-15
ColorBlack
Handguard Length13
Mounting InterfaceM-LOK
Construction TypeFree-Float
FinishHardcoat Anodized
Frequently Built With
Based on build data
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4
Bravo Company M16 Bolt Carrier Group Black
Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black
CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B
Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length
Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
100%
AR-15100%
CaliberBased on real build data showing which calibers builders choose alongside this product.
100%
5.56 NATO100%
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
100%
Mid-Length100%
| Product | Category | Times Built Together |
|---|---|---|
| Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4 | 23 | |
| Bravo Company M16 Bolt Carrier Group Black | 13 | |
| Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black | 11 | |
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 10 | |
| Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length | 10 | |
| Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom | 8 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 100% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 100% |
Builds Featuring This Part
See all 17 →Builds in the community that include the Bravo Company Mfg M-LOK 13" Modular Rail, Black - MCMR13556BLK
| Build | Parts | Total |
|---|---|---|
 | 10 | $1446.62 |
 | 13 | $1734.69 |
 | 12 | $2066.84 |
| 15 | $2502.09 |
 | 6 | $1170.40 |
 | 23 | $2258.82 |
| 25 | $2031.25 |
 | 20 | $1795.40 |
| 26 | $3470.75 |
 | 18 | $1173.29 |
 | 16 | $1880.11 |
 | 11 | $1199.87 |
Customer reviews
5.0out of 5
2 global ratings
Top reviews
J
jakedogg44887MCMR 13 M-LOK solid
Reviewed on March 15, 2026Verified with Build
BCM MCMR 13 inch M-LOK rail has tight tolerance M-LOK slots and the anti-rotation tabs sit flush against the upper. Free float aluminum body. Black anodize is consistent. BCMs barrel nut wrench makes install straightforward.
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