Brownells M4 Buttstock Black
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Brownells
Overview
The Brownells M4 Buttstock in black is a collapsible stock designed to fit Mil-Spec buffer tubes, providing flexibility in length for various shooting applications. Made from durable polymer, this stock delivers a lightweight yet sturdy option for your AR-15 build, enhancing overall ergonomics and comfort during use. This buttstock is frequently found in builds utilizing a Mid-Length gas system chambered in .223 Wylde, making it a practical choice for versatile shooting scenarios.
Specifications
Build history on GunPartPicker
Builders have been adding the Brownells M4 Buttstock Black to their builds on GunPartPicker since February 2026. All time, it ranks #63 of the 444 stocks and braces builders have added. Builds with this stock are nearly all chambered in 5.56 NATO, nearly all on rifle-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today the one retailer we track has it in stock. The best price drifted down from $19.99 to $15.99 over August 2026 without a real sale. Buying today, the lowest price is $15.99 at Brownells, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 12 builds that include this one
Wilson Combat AR-15 Lower Receiver Forged
Aero Precision M4E1 Threaded 16" .223 Wylde Mid-Length Complete Upper w/ 15" Logic M-LOK Handguard, VG6 Epsilon SL
Expo Arms Standard AR-15 Charging Handle
PSA AR15 Rear Take Down Pin - 7286
LBE Unlimited AR-15 A2 Pistol Grip, Black - ARGRP
LBE Unlimited AR-15 Magazine Catch Assembly, Black - ARMCASY
Builds Featuring This Part
See all 2 →Builds in the community that include the Brownells M4 Buttstock Black
| Build | Parts | Total |
|---|---|---|
 | 21 | $801.17 |
 | 14 | $965.75 |
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