Strike Industries FSA single folding stock locks open with positive detent. QD socket holds a sling without play. The folded position reduces overall length significantly. Lockup is solid in both folded and deployed states.






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Strike Industries
Overview
The Strike Industries FSA Single Folding Stock is designed for builders looking for a compact and reliable stock solution that enhances tactical mobility. Made from steel, this folding stock allows for quick deployment and storage, making it ideal for situations where space is limited. This stock is frequently found in builds utilizing a mid-length gas system chambered in 5.56 NATO, providing versatility and ease of use in dynamic environments.
Strike Industries FSA Single Folding Stock Black - Compact and Reliable Folding Stock for Tactical Mobility - SI-FSA-S-STOCK
Strike Industries FSA Single Folding Stock Black - Compact and Reliable Folding Stock for Tactical Mobility - SI-FSA-S-STOCK ranked #25 of the 204 stocks and braces builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #29 of the 444 stocks and braces builders have added. Builds with this stock are mostly chambered in 5.56 NATO (67%, then .223 Wylde 17%), split between carbine-length (50%) and mid-length (50%) gas systems, and mostly AR-15 (83%, then AR-9 17%).
It was hard to find in August 2026, in stock on only 8 of the 25 days we checked, and today 3 of the 6 retailers we track have it in stock. Prices barely moved in August 2026, holding around $159.95, so there haven't been real sales lately. Buying today, the lowest price is $159.95 at Optics Planet, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 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 Strike Industries FSA Single Folding Stock Black - Compact and Reliable Folding Stock for Tactical Mobility - SI-FSA-S-STOCK
| Build | Parts | Total |
|---|---|---|
![]() | 7 | $642.90 |
![]() | 30 | $4042.75 |
![]() | 29 | $3802.78 |
![]() | 19 | $9433.05 |
![]() | 28 | $8004.47 |
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Top reviews
Strike Industries FSA single folding stock locks open with positive detent. QD socket holds a sling without play. The folded position reduces overall length significantly. Lockup is solid in both folded and deployed states.