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AIM Sports
Overview
The Aim Sports GI Style Stock Body is a solid black polymer stock designed to enhance the functionality and ergonomics of your AR-15 or M4 platform. Its lightweight construction ensures durability without adding unnecessary weight, making it an excellent choice for builders focused on maintaining a streamlined profile. This stock commonly appears in builds featuring a mid-length gas system chambered in 5.56 NATO, providing a reliable foundation for various shooting applications.
Upgrade Your AR-15/M4 Stock with the Aim Sports GI Style Stock Body - Solid Black - USASM4STK
Prices checked
AIM Sports Upgrade Your AR-15/M4 Stock with the Aim Sports GI Style Stock Body - Solid Black - USASM4STK ranked #38 of the 245 stocks and braces builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #35 of the 560 stocks and braces builders have added. Builds with this stock are mostly chambered in 5.56 NATO (73%, then .223 Wylde 15%), split between mid-length (46%) and carbine-length (32%) gas systems, and mostly AR-15 (94%).
It was out of stock everywhere we track every time we checked in October 2026, and today only Optics Planet has it in stock. Buying today, the lowest price is $23.99 at Optics Planet.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every stock & brace by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Stock Popularity Report →Check it against the live catalog:
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Upgrade Your AR-15/M4 Stock with the Aim Sports GI Style Stock Body - Solid Black - USASM4STK
| Build | Parts | Total |
|---|---|---|
 | 15 | $1187.34 |
 | 24 | $817.07 |
 | 5 | $507.15 |
 | 24 | $2483.69 |
 | 28 | $1406.32 |
 | 28 | $4891.53 |
2 global ratings
Top reviews
AIM Sports GI style stock body is lightweight but solid feeling. Rubber butt pad grips a jacket or plate carrier well. Polymer is thicker than the original GI version. Locks tight on a milspec carbine tube. Budget priced functional stock.
AIM Sports basic GI style stock body to replace a damaged stock. The polymer is thicker than the original GI version, feels less brittle. Slides onto a milspec carbine extension and locks at each position. Budget priced for a basic stock replacement.
