The Magpul STR (Storage/Type Restricted) Adjustable MilSpec Buttstock is built for durability and stability. This stock features a supplemental friction lock for industry-leading stability, and a shielded operation lever to protect from accidental operation during use. This adjustable stock provides dual water-resistant battery storage tubes on either side, each capable of holding two CR123A or AA batteries so you're never without a flashlight, laser sight, or other piece of battery operated gear again. Versatility is key, and with an ambidextrous push-button QD sling swivel mount (sling and swivel sold separately) and 0.30" in. replaceable butt-pad, Magpul takes the versatility of your airsoft gun to a whole new level with the STR buttstock.
Compatibility: This Magpul STR Carbine Stock is compatible with AR-15 and M4 carbines with MilSpec-sized buffer tubes.