Next Level Armament AR15 450 Bushmaster 16in Forged Complete Upper Receiver 16in Carbine Gas 1-24 Twist Black. Now legal in the shotgun zones in Michigan Ohio Indiana Iowa and several other states the NLX450 Bushmaster complete upper is must have for hunters. Whether you hunt deer or hogs the accuracy and stopping power of the Next Level NLX450 cannot be beat Because of the growing popularity of the 450 Bushmaster round we recognized many AR15 owners only needed a complete upper for hunting a few months of the year. We designed NLX450 Bushmaster complete upper with top quality components to meet that demand. Combined with the best 450 Bushmaster break design on the market we obtained incredible accuracy and range from a large caliber bullet. You wont be disappointed with your new hunting machine Next Level manufactures all our products in house with made in specialized factories materials. From our 7015 aluminum standard to our precision Aerospace machining our quality speaks for itself. Built with the best parts on the market our complete upper receiver comes with all the upgrades standard. Why pay less for inferior parts and pay more to upgrade later? Your upper includes the following parts: NLX556 forged upper receiver Tromix 18? mid-gas or 16? carbine gas 1/24 twist NLX556 Bolt Carrier w/ DLC finish Tromix .450BM Bolt NLX556 Ambidextrous Charge Handle NLA billet low profile gas block NLA 13? Mlok handguard with 16? barrel 15? Mlok handguard with 18? barrel NLX11 450 Bushmaster brake Extra power buffer spring Specifications for Next Level Armament AR15 450 Bushmaster 16in Forged Complete Upper Receiver: Manufacturer: Next Level Armament Caliber: .450 Bushmaster Barrel Length: 16 in Barrel Profile: Carbine Barrel Twist Rate: 1-24 Color: Black Gun Make: AR Platform Gun Model: AR-15 Package Contents: Next Level Armament AR15 450 Bushmaster 16in Forged Complete Upper Receiver NLX556 forged upper receiver Tromix 18? mid-gas or 16? carbine gas 1/24 twist NLX556 Bolt Carrier w/ DLC finish Tromix .450BM Bolt NLX556 Ambidextrous Charge Handle NLA billet low profile gas block NLA 13? Mlok handguard with 16? barrel 15? Mlok handguard with 18? barrel NLX11 450 Bushmaster brake Extra power buffer spring Next Level Armament NLX507: AR15 450 Bushmaster 16in Forged Complete Upper Receiver 16in Carbine Gas 1-24 Twist Black