GLR-16 Fab Defense AR15M16M4 Tactical Buttstock w/ Waterproof Storage Compartment

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AR15/M16 Buttstock enhanced versatility with it's stock extension




The GLR-16 Buttstock for your AR15/M16 provides you with enhanced versatility with its stock extension and optionally 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

Available in the GPCP Version with an Adjustable Cheek Rest & Dual Picatinny Rails, or in the Standard GCP Version with an Adjustable Cheek Rest.

  • fits perfectly on MIL-SPEC and commercial after-market buffer tubes
  • AR15M16M4 Tubes


  • Weight 276 gr
  • Width 48 mm
  • Height 130 mm
  • Length 180 mm

Additional information


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