Stern Defense Receiver Parts

Stern Defense AR-15 Magwell Adapter for S&W M&P, Sig P320 9mm Magazines Black

Stern Defense AR-15 Magwell Adapter for Glock 9mm Magazines Black

Stern Defense AR-15 Magwell Flare for Magwell Adapters Black

Stern Defense AR-15 Magwell Adapter for Beretta 92 9mm Magazines Black

Stern Defense MOD5 Complete Upper 9mm 6 Threaded Barrel 8 M-LOK Handguard

Stern Defense AR-15 Ejector

Stern Defense AR-15 Magwell Adapter for 45ACP S&W M&P Magazines

Stern Defense AR-15 SD 10 MOD5 Complete Upper Receiver 9mm Luger 8.5" M-LOK

Stern Defense AR-15 SD 4 MOD4 Complete Upper Receiver 9mm Luger 4" M-LOK

Stern Defense Mod4 Complete Upper 9mm 16.1 Barrel