GLR-16 AR15/M16 Buttstock


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The GLR-16 Buttstock for your AR15/M16 provides you with enhanced versatility with it's stock extension and optional adjustable Cheek Rest.


  • Uniquely designed rubber butt pad for fast and stable shoulder positioning
  • Unique patented Anti-Rattle mechanism
  • fits perfectly on Mil-Spec and commercial after-market buffer tubes
  • Three Integrated Slots for Sling Attachment
  • One in the Front and Two at the Rear
  • Two Ambidextrous Metal Quick Release Rear Sling Mount Points
  • Water-resistant anti rattle storage compartment for two CR123 or AA batteries
  • Maintains Contour & Size of Original Design
  • Made from fiberglass reinforced polymer composite.
SKU: fx-glr16


5 out of 5 (based on 1 rating)
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GLR-16 AR15/M16 Buttstock

The GLR-16 AR15/M16 Buttstock is absolutely wonderful. The standard OEM M4 buttstock had been my AR “Go To” part for years. It was a faithful partner for me during my military years… but then I discovered FAB Defense and their products. As a newly certified Armorer, the GLR 16 buttstock got the AR platform will be the recommended product to everyone I come in contact with. The I genius means by which FAB Defense designed the buttstock to not have rattle movement is a tactical blessing. Nothing sucks more than having a part on your custom AR build that rattles. FAB Defense solved that annoyance and made available a product that better than what I had in the military. I’d be proud to represent all their products on my repairs and builds to my friends. Thanks FAB Defense!
Posted by Brian S., 01/31/23