specifications
Stern Defense, Llc
Color:Black
Type:Complete
Platform:AR-15
- 4in barrel
- 4in M-LOK Free Float handguard
- Complete assembly with 9mm bolt and charging handle
- ½-36 muzzle thread pitch
- 1.75” long by 1.2” diameter blast can muzzle device
- SD BU9 9mm Bolt
- Cartridge: 9mm Nato
Sd Mod 4 9mm Upper Receiver 4in M-Lok Complete Black
Caliber | Manufacturer | Color | Weight | Merchant Price | Merchant URL | |
---|---|---|---|---|---|---|
None | Stern Defense, Llc | Black | None None | $ 429.99 | Brownells | Add |
Spend Less Time Building and More Time Shooting.
The Stern Defense SD Mod 4 9mm Upper Receiver is a complete, ready to go, upper receiver solution for those looking to spend less time building and more time shooting.
The 4 inch, 1-10 twist, Melonited barrel, is free float in a 4in M-LOK handguard attached to a 7075-T6 forged aluminum receiver.
On the end of the barrel mounted on the ½-36 threads is a 1.75” long, 1.2” diameter blast can designed to direct the short barreled blast away from the shooter.
Included in the upper receiver is charging handle and the Stern Defense 9mm Bolt which is compatible with both Glock and Colt SMG magazines, has a Melonite finish, and is works in conjunction with the Law Tactical Folding Adapter. The Stern Defense SD Mod 4 9mm Upper Receiver is made in the U.S.A.
Big Book Catalog, Issue:72, Page:007