The FAB Defense GLR-16 CP Adjustable Cheek-Rest Buttstock (FAB Defense part no. FXGLR16CP) upgrades any AR-15, M16, or M4 build with a stock extension, a rubber butt pad for stable shoulder positioning, and a cheek-rest that adjusts to your optic height, made by FAB Defense. Molded from fiberglass reinforced polymer composite in a black finish, it fits both mil-spec and commercial buffer tubes. FAB Defense’s patented anti-rattle mechanism locks the stock down solid on the tube, eliminating the clatter that plagues cheaper collapsible stocks. A water-resistant storage compartment inside holds two CR123 or AA batteries, so spares for your optic or light are always on hand.

Key Specifications

• Cheek-rest: adjustable cheek-rest height to match optic mounting.
• Anti-rattle mechanism: patented design eliminates play on the buffer tube.
• Material: fiberglass reinforced polymer composite construction.
• Buffer tube fit: compatible with both mil-spec and commercial buffer tubes.
• Sling attachment: three integrated sling slots, one forward and two at the rear.
• Storage: water-resistant compartment holds two CR123 or AA batteries.
• Butt pad: rubber butt pad for stable, non-slip shoulder positioning.
• Finish: black finish.

Frequently Asked Questions

Does the cheek-rest adjust? Yes, the cheek-rest height is adjustable to match your optic’s mounting height.

What buffer tubes does this fit? It fits both mil-spec and commercial AR-15/M16/M4 buffer tubes.

Is there storage for batteries? Yes, a water-resistant compartment inside the stock holds two CR123 or AA batteries.

Buy the FAB Defense GLR-16 CP Adjustable Cheek-Rest Buttstock

Get a stock that locks down solid and keeps spare batteries on hand, from our AR stocks lineup. Order it from our Lubbock, Texas gun shop for fast, direct shipping to your door.