7/8” hopper elbow for markers with right feed.

TPN Sierra One is featuring a six position collapsible and foldable stock, an AR-15 style shroud with four built-in Picatinny rails and a new AR-15 style magazine that doubles as a helpful toolkit. The marker also incorporates a flat-top Picatinny rail built into the receiver, which makes it simple for players to quickly add a handle, site, scope or a variety of other modifications.