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Fab Defense
Overview
The FAB Defense GL-Core M CP Buttstock is designed to enhance shooting precision while offering a durable construction thanks to its polymer material. Its ergonomic design provides a comfortable shoulder fit, making it easier to maintain control during firing. This buttstock is frequently found in builds utilizing a mid-length gas system and chambered in 5.56 NATO, aligning well with setups that prioritize handling and accuracy.
FAB Defense GL-Core M CP Buttstock Black - Tactical GL-Core M CP Buttstock for Improved Shooting Precision and Durability - FXGLCOREMAGCPB
Prices checked
FAB Defense GL-Core M CP Buttstock Black - Tactical GL-Core M CP Buttstock for Improved Shooting Precision and Durability - FXGLCOREMAGCPB ranked #13 of the 245 stocks and braces builders added on GunPartPicker in October 2026, behind the ODIN Works Zulu Adjustable Stock KIT w/ Padded Pistol Buffer Tube & End Plate, Flat Dark Earth, with about 1% of all stocks and braces added to builds. That's its 3rd straight month at #13. Builds with this stock are mostly chambered in 5.56 NATO (67%, then .223 Wylde 10%), split between mid-length (59%) and carbine-length (20%) gas systems, and mostly AR-15 (91%).
Availability is good: it was in stock at one retailer or another nearly every day in October 2026, and today 4 of the 5 retailers we track have it in stock. Prices barely moved in October 2026, holding around $127.90, so there haven't been real sales lately. Buying today, the lowest price is $105.99 at Primary Arms, which matches the best price we saw in October.
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 FAB Defense GL-Core M CP Buttstock Black - Tactical GL-Core M CP Buttstock for Improved Shooting Precision and Durability - FXGLCOREMAGCPB
| Build | Parts | Total |
|---|---|---|
 | 30 | $6611.98 |
 | 12 | $2697.14 |
 | 19 | $3507.19 |
 | 15 | $3621.69 |
 | 13 | $2939.88 |
 | 16 | $1130.39 |
 | 25 | $2065.32 |
 | 13 | $7403.68 |
 | 33 | $3164.55 |
 | 33 | $6545.23 |
 | 22 | $1593.51 |
 | 32 | $2738.50 |
1 global rating
Top reviews
FAB Defense GL-Core M CP buttstock in black has the QD socket that holds tight to a sling. Stock locks at each position positively on a milspec tube. Polymer is dense. Israeli-style stock with a modern profile.
