D
david907great purchase
Reviewed 5 days agoVerified with Build
best stock i have used
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Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension
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Bravo Company
Overview
The Bravo Company AR-15/M16 BCM Mil-Spec 6 Position Receiver Extension is a carbine buffer tube designed to work with standard mil-spec components, ensuring compatibility with a wide range of stocks. This tube is essential for adjusting the length of pull on your rifle, providing six distinct positions for optimal user comfort and control. Commonly found in builds with a mid-length gas system and chambered in 5.56 NATO, this receiver extension is a solid choice for those looking to enhance their AR-15's functionality and ergonomics.
Specifications
MPNBCM MILSPEC RE
AssemblyTube Only
Buffer Tube TypeCarbine
ColorBlack
FinishHardcoat Anodized
Buffer Tube SpecMil-Spec
Frequently Built With
Based on build data
CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B
Strike Industries Extended Bolt Catch
B5 Systems Trigger Guard ATG-001-01
Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C
Fortis Lightweight Enhanced AR-15 End Plate, Gold - LE-BLK-K1-GOLD
Timber Creek Outdoors Ambidextrous Safety Selector - Black
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.
75.6%
AR-1575.6%
AR-1022%
AR-92.4%
CaliberBased on real build data showing which calibers builders choose alongside this product.
69.2%
5.56 NATO69.2%
300 Blackout11.5%
.223 Wylde7.7%
.450 Bushmaster3.8%
6mm ARC3.8%
Other3.8%
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
50%
Mid-Length50%
Carbine27.3%
Pistol13.6%
Rifle9.1%
| Product | Category | Times Built Together |
|---|---|---|
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 224 | |
| Strike Industries Extended Bolt Catch | 185 | |
| B5 Systems Trigger Guard ATG-001-01 | 163 | |
| Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C | 152 | |
| Fortis Lightweight Enhanced AR-15 End Plate, Gold - LE-BLK-K1-GOLD | 115 | |
| Timber Creek Outdoors Ambidextrous Safety Selector - Black | 113 |
| Platform | Percentage |
|---|---|
| AR-15 | 75.6% |
| AR-10 | 22% |
| AR-9 | 2.4% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 69.2% |
| 300 Blackout | 11.5% |
| .223 Wylde | 7.7% |
| .450 Bushmaster | 3.8% |
| 6mm ARC | 3.8% |
| 9mm | 3.8% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 50% |
| Carbine | 27.3% |
| Pistol | 13.6% |
| Rifle | 9.1% |
Builds Featuring This Part
See all 96 →Builds in the community that include the Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension
| Build | Parts | Total |
|---|---|---|
 | 22 | $916.01 |
 | 15 | $1206.50 |
 | 23 | $2410.28 |
 | 17 | $1408.43 |
 | 27 | $2021.41 |
 | 26 | $1796.47 |
 | 22 | $1144.90 |
 | 27 | $4052.40 |
| 23 | $2139.39 |
 | 23 | $2033.47 |
 | 26 | $3165.48 |
 | 32 | $5870.69 |
Customer reviews
4.9out of 5
7 global ratings
Top reviews
L
Luckyhappy with it
Reviewed on April 25, 2026Verified with Build
cheek weld is comfortable for long range sessions. QD socket holds my sling without play
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S
Stanton01love it
Reviewed on April 16, 2026Verified with Build
love the profile
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R
razey10/10
Reviewed on March 15, 2026Verified with Build
drops right in
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T
t1ll3rhappy overall
Reviewed on March 5, 2026Verified with Build
good stock. release lever is stiff at first
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C
ch3mp3lgreat upgrade
Reviewed on February 25, 2026Verified with Build
QD socket holds tight
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R
RelentlessRobxno regrets
Reviewed on January 19, 2026Verified with Build
cheek weld is comfortable for long range sessions. QD socket holds my sling without play
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