Magpul STR AR-15 Carbine Stock, Mil-Spec Magpul STR Features The Magpul STR (Storage/Type Restricted) Carbine Stock - Mil-Spec is a drop-in replacement buttstock for AR15/M4 carbines using Mil-Spec sized receiver extension tubes. A storage-capable version of the CTR,... MSRP: Was: Now: $79.99 Out of stock
