Looking for just the key components for a 40SW carbine conversion?
Look no further.
IN THIS KIT:
- SD 6 Inch 40SW barrel, threaded .578-28, 1 in 16 twist.
- SD BU40 40SW bolt
Stern .40S&W barrels are ideal for gun lovers who want to build their own custom dedicated .40S&W AR15 upper group. Machined to tight tolerances with quality as a top priority, you can't go wrong with the SD .40 cal barrel.
Note: All SD Barrels come with the locating pin installed.
- Barrel length is measured in overall length.
- Caliber: 40S&W.
- Length: 6 Inches.
- Made in the U.S.A.
- Threaded .578-28.
- 1:16 TWIST.
- 4150 Chrome-molly steel.
- Melonite coating.
Made with 8620 AISI steel and boasting a Mag-Phosphate finish, the Stern bolt fits into Mil-Spec and Glock-pattern upper receivers. It functions with Colt SMG, Glock magazines and it's fully compatible with standard AR15/M16 charging handles. Comes fully assembled with all sub-components installed, including firing pin/spring/retaining pin, extractor, and extractor spring. Also included in bolt assembly is a propriety center and roll pins. Our 40SW bolts incorporate our new bolt design which caters to single stage triggers with short resets. It also allows use with the JP silent capture spring but is not recommend for 40SW applications. This bolt is compatible with the Law Tactical folding stock and the Echo trigger.
- Made in U.S.A.
- Constructed from 8620 AISI steel.
- Custom 4140 billet extractor providing superior ejection.
- Glock cut.
- Coating: Mag-Phosphate
- Weight: 15.5 OZ with weight 13.3 OZ without.
- Compatible with single stage short reset triggers.
- Compatible with the Law Folding Tactical Stock
- Compatible with the Echo trigger.
- Compatible with the JP Silent capture spring (Not recommended)
Convert your standard mil spec AR 15, M4, M16 lower assembly to use 9mm and .40 S&W Glock Magazines! The Mag-AD series adapters install in seconds. Boasting a last round hold open feature making them a breakthrough product and a must-have for law enforcement and civilian gun enthusiasts alike.
The Stern Mag-AD9 series adapters are made of aircraft grade aluminum, lightweight with ergonomic design.
⦁ Made in the U.S.A.
⦁ Constructed from 6061 T6 aircraft grade aluminum.
⦁ 4140 NiB coated feed ramp.
⦁ Hard coat anodized type 3.
⦁ Sturdy Construction.
⦁ Ergonomic mag release.
⦁ Works with all generations of Glock magazines.
⦁ Works with any mil spec ar15 lower receiver.
⦁ All gun components besides the Bolt and Barrel remain stock