Stern Defense AR-15 16.1 inch Assembled .45 ACP Upper Receiver w/15 inch MLOK Rail

THIS KIT MUST BE USED WITH A 11 OUNCE BUFFER OR HEAVIER WHEN USING A CARBINE SPRING. WHILE OUR 45 BOLT WILL ACCOMMODATE A JP SILENT CAPTURE SPRING. WE DO NOT RECOMMEND IT AS 45ACP CAN DAMAGE THE JP SYSTEM. WHATS INCLUDED! Stern Defense 15 inch M-LOK rail(Barrel nut, bolts etc.) Stern Defense 16.1 inch 45acp barrel. SD CB45 COMPENSATOR BREAK. Stern Defense assembled upper receiver 45 with dust cover and forward assist. Stern Defense SD BU45 Glock cut bolt. SD CH1 enhanced charging handle. Will come assembled. Information: Handguard. The free float M-LOK handguard from Stern Defense offers excellent ergonomics while remaining lightweight and strong. This handguard is M-LOK compatible to accept your favorite attachments. Features a secure clamp on mounting system that ensures that the handguard remains in place even under heavy abuse, sustained full auto fire, and shooting prone from a bi-pod. Machined from 6061 aircraft grade aluminum and hard-coat anodized for longevity and durability. These handguards also feature quick disconnect swivel holes. Also Included, Barrel Nut and Bolts. Technical Information: 6061 aircraft grade aluminum. Hard-coat anodized. Sturdy construction. Light weight construction. Length 15 inches. Smallest inside diameter 1.435 inches. made in specialized factories Barrel. Stern 45acp barrels are ideal for gun lovers who want to build their own custom dedicated 45acp AR15 upper group. Note: Barrel comes with locating pin installed. Information: Barrel length is measured in overall length from breech to muzzle. Caliber: 45acp. Length: 16.1 Inches. made in specialized factories Threaded .578-28 1:16 TWIST. 4150 Chrome-moly steel. Melonite coating. Receiver. Mil-Spec flat top upper receiver with Stern Defense laser engraved dust cover and forward assist. Machined from 7075-t6 aluminum and hard-coat anodized. Mil-spec dry film lube in the bore. This uppers ejection port has been enlarged to work with larger rounds like the 45acp and etc. Technical Information: 7075-t6 aluminum Hard-coat anodized. Sturdy construction. made in specialized factories Charging Handle. Mil-spec charge handle for AR-15 rifles. Laser engraved with Stern Defense logo. Our latch is Ergonomically designed and provides a positive grip and easy one hand manipulations while charging your weapon under stressful situations. Made from 6061 aircraft grade aluminum billet and hardcoat anodized. Technical Information: Laser engraved. 6061 aircraft grade aluminum billet Hard coat anodized. Sturdy Construction. made in specialized factories Bolt. Made with 8620 AISI steel and boasting a Melonite 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 45 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 45 acp applications. This bolt is compatible with the law tactical folding stock. Technical Information: made in specialized factories Constructed from 8620 AISI steel. Custom 4140 billet extractor providing superior ejection. Glock cut. Coating: Melonite Weight: 15.5 OZ. 45acp Compatible with single stage short reset triggers. Compatible with the Law Folding Tactical Stock Compatible with the JP Silent capture spring(not recommended for 45acp) COMP BREAK Manufactured to the highest quality standards right here in the U.S.A. Full auto tested to ensure that the compensator ports keep muzzle rise to a minimum. The twin chamber ports guarantee that every last bit of usable gas is utilized to kill recoil. Machined from US Mil-spec AISI 4140 steel and black nitride coated to provide a lifetime of abuse. Note: Comes with crush washer. Technical Information: Full auto tested US Mil-spec AISI 4140 steel. Sturdy construction. Black nitride coating made in specialized factories 45acp Threaded .578-28 Specifications for Stern Defense AR-15 16.1 inch Assembled .45 ACP Upper Receiver w/15 inch MLOK Rail: Manufacturer: Stern Defense Cartridge: .45 ACP Barrel Length: 16.1 in Finish: Matte Color: Black Additional Features: Compatible with single stage short reset triggers., Barrel length is measured in overall length from breech to muzzle., 4150 Chrome-moly steel., 6061 aircraft grade aluminum., Compatible with the JP Silent capture spring(not recommended for 45acp), Compatible with the Law Folding Tactical Stock Condition: New Magazine Included: No Length: 15 in Package Contents: Stern Defense AR-15 16.1 inch Assembled .45 ACP Upper Receiver w/15 inch MLOK Rail