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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
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 204 stocks and braces builders added on GunPartPicker in August 2026, behind the Hogue OverMolded Reinforced Polymer Collapsible Buttstock, Olive Drab Green - 15250, with about 2% of all stocks and braces added to builds. Down from #11 in July. Builds with this stock are mostly chambered in 5.56 NATO (88%), split between mid-length (50%) and rifle-length (29%) gas systems, and mostly AR-15 (86%, then AR-10 14%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 4 of the 5 retailers we track have it in stock. The best price crept up from $106.99 to $127.90 over August 2026. Buying today, the lowest price is $127.90 at Optics Planet, above August's low of $106.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 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 | $6328.11 |
 | 12 | $2725.06 |
 | 19 | $3484.27 |
 | 15 | $3722.86 |
 | 13 | $2975.72 |
 | 16 | $1149.80 |
 | 25 | $2030.21 |
 | 13 | $7206.12 |
 | 33 | $3137.17 |
 | 33 | $6482.44 |
 | 22 | $1589.68 |
 | 32 | $2551.68 |
2 global ratings
Top reviews
FAB Defense GL-Core M CP buttstock in black is lightweight but solid feeling. Rubber butt pad grips a shoulder or plate carrier well. Locks tight at each position on a milspec tube. Solid budget Israeli stock option.
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.
