This AR15 kit includes an adjustable stock, plus the adapter. It fits Crosman 1377, 1322, PC77, and 2289 Backpacker series.
Adjustable Stock and Buffer Tube
6 position adjustable stock for use with The R Arms Teryx Chassis system. These are for non AR guns, and do not include a buffer spring, buffer plate, or locking plate.
- UTG/Leapers 6 position mil spec collapsible stock
- Buffer tube
- Castle nut.
Adjustable Adapter with Power Adjuster
1377, 1322, PC77, and 2289 Backpacker series. Scope use or taller than stock sights would be highly recommended due to low factory sight height.