User Ratings
No ratings yet
Be the first to review this product
Adaptable Carbine/Storage ACS stock is a drop-in replacement for standard USGI M4 collapsible stock, providing extra storage options, a secure cheekweld, and a dual-locking lever. Smooth exterior contours prevent snagging on clothing, sling, or vegetation and help ensure fast exits from vehicles. Removable battery storage compartments run the full length of the comb and hold 2 AA or 3 CR-123 batteries. The ASC Buttstock Kit includes Mil-Spec buffer tube, Carbine buffer, Chrome silicone recoil spring, receiver end plate, and receiver extension castle nut. Specs: reinforced molded polymer, available in Black, Dark Earth, or OD Green. Approximate overall length 7.78 inches (20 cm) and weight 13.6 oz.
Specifications
- Manufacturer:
- Brownells
- Category:
- stock-brace
- Platforms:
- AR-15
- Weight:
- 13.6 oz
- Required Component:
- Yes
Parts Cabinet
Track parts you own or plan to buy.
Where to Buy
Have one to sell?
Sponsored
MantisX
The smart way to train your AR build
Built your rifle — now train it. BlackBeardX installs in minutes and turns your AR into a full dry fire system with smart feedback on every pull.
Shop BlackBeardXPrice History
No Price History Available
Check back later for pricing trends
Price Alert
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertWhat's Included in this Bundle
Similar Products
Magpul CTR Carbine Stock, Mil-Spec, Black (MAG310)
Magpul
$64.95
B5 Systems Bravo Collapsible Mil-Spec AR-15 Stock, Black
B5 Systems
$52.63
3rd Gen Armory SOPMOD Buttstock (PS-ST7B-USA)
3RD Gen Armory
$66.99
SB Tactical SBA3 5-Position Adjustable Pistol Brace, No Buffer Tube, Black (SBA3X-01-SB)
SB Tactical
$64.99
B5 Systems Enhanced SOPMOD Collapsible Mil-Spec AR-15 Stock, Black (SOP-1463)
B5 Systems
$79.99
Magpul DT Carbine Stock, Mil-Spec, Flat Dark Earth (MAG1377-FDE)
Magpul
$48.70
B5 Systems Bravo Collapsible Mil-Spec AR-15 Stock, Flat Dark Earth
B5 Systems
$52.63
BCM Gunfighter Mod 0 SOPMOD Stock Assembly, Black
Bravo Company Manufacturing (BCM)
$52.76
Builds Using This Part
No builds yet — be the first to use this part.
Related Guides
Guide
AK Furniture and Ergonomics: Stocks, Handguards, and Practical Setup
How AK stock and handguard choices affect control, heat management, optic height, and practical shooting ergonomics.
5 min read
Guide
The AK Platform: Core Design, Strengths, and Builder Tradeoffs
A practical AK overview covering operating system basics, parts ecosystem realities, and where the AK platform shines compared to AR-pattern rifles.
8 min read
Guide
The AR-10 Platform: What It Is and How It Differs from the AR-15
A practical overview of the AR-10 — its origins, how it differs from the AR-15, available calibers, and when it makes more sense than a standard AR-15 build.
6 min read