Brownells mil-spec 6 position buffer tube has a comfortable cheek weld for extended range sessions. The QD socket holds a sling without play. Threads to a standard milspec castle nut. Anodize is the standard matte black. Budget tube that works.


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Brownells
Overview
The Brownells AR-15/M16 Mil-Spec Buffer Tube is designed as a carbine buffer tube that allows for the installation of six different stock positions, providing flexibility in length of pull for the shooter. Built to Mil-Spec standards, it ensures compatibility with a wide range of stocks and components, making it a reliable choice for your build. This buffer tube commonly appears in mid-length gas system builds chambered in 5.56 NATO, offering a balanced setup for various shooting scenarios.
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Based on build data
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| B5 Systems Trigger Guard ATG-001-01 | 6 | |
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 5 | |
| Aero Precision M4a1 Clone Lower Receiver | 4 | |
| Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C | 4 | |
| Magpul Moe K2 Grip Polymer Gray | 4 | |
| Brownells Ar-15 Bolt Catch Mil-Spec | 3 |
| Platform | Percentage |
|---|---|
| AR-15 | 66.7% |
| AR-10 | 33.3% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 100% |
| Gas System | Percentage |
|---|---|
| Carbine | 50% |
| Mid-Length | 50% |
Builds in the community that include the Brownells Ar-15/m16 Mil-Spec Buffer Tube 6 Position
| Build | Parts | Total |
|---|---|---|
![]() | 26 | $1803.79 |
![]() | 24 | $1756.61 |
![]() | 16 | $636.25 |
![]() | 21 | $772.87 |
![]() | 20 | $3503.96 |
2 global ratings
Brownells mil-spec 6 position buffer tube has a comfortable cheek weld for extended range sessions. The QD socket holds a sling without play. Threads to a standard milspec castle nut. Anodize is the standard matte black. Budget tube that works.
Plain milspec buffer tube from Brownells, does the job for a budget build. Threads were clean and lined up with my castle nut without any binding. Six positions click positively. The integrated QD point is only on the left side which is fine if youre left hand carry but odd for right handed.