Bushmaster AR-15 Style Multiple Caliber Complete Lower Receiver 5.56 NATO Black Receiver

A: Yes, this is a "Complete Lower" Aaron. These high quality, military style AR-15 lower receiver assemblies from Bushmaster feature six position telescoping stocks and standard fire control groups. Compatible with a wide range of calibers, such as .223 Remington, .300 AAC Blackout, .22 Long Rifle, and 9mm Luger, these lowers are perfect for your next AR-15 build. Assembled only from Bushmaster's highest quality components, they are complete and ready to use. Simply snap on any standard AR-15 upper receiver and sight in your new rifle!

A: Hi aaron, Yes this is a complete lower. Assembled only from Bushmaster's highest quality components, they are complete and ready to use. Simply snap on any standard AR-15 upper receiver and sight in your new rifle!

A: Please click the green box stating it as the best answer. We are rated on our answers and are just volunteers, not Buds employees. You can choose more then one Thank you!

A: Specifications and Features: Compatible with any AR-15 style upper receiver 7075 T6 Aluminum A2 Style pistol grip 6 Position collapsible stock Black

A: Yes, it is a Complete Lower assembly . These high quality, military style AR-15 lower receiver assemblies from Bushmaster feature six position telescoping stocks and standard fire control groups. Compatible with a wide range of calibers, such as .223 Remington, .300 AAC Blackout, .22 Long Rifle, and 9mm Luger, these lowers are perfect for your next AR-15 build. Assembled only from Bushmaster's highest quality components, they are complete and ready to use. Simply snap on any standard AR-15 upper receiver and sight in your new rifle!

A: Hi Aaron, Yes this is a complete lower. These high quality, military style AR-15 lower receiver assemblies from Bushmaster feature six position telescoping stocks and standard fire control groups. Compatible with a wide range of calibers, such as .223 Remington, .300 AAC Blackout, .22 Long Rifle, and 9mm Luger, these lowers are perfect for your next AR-15 build. Assembled only from Bushmaster's highest quality components, they are complete and ready to use. Simply snap on any standard AR-15 upper receiver and sight in your new rifle! Specifications and Features: Compatible with any AR-15 style upper receiver 7075 T6 Aluminum A2 Style pistol grip 6 Position collapsible stock Black.. Please click the green box stating it as the best answer. We are rated on our answers and are just volunteers, not Buds employees. You can choose more then one Thank you!

A: This is a "Multi-Caliber" lower Ray. 5.56/223 - 300BLK - etc. Too many to name here so click this link : http://www.weapon-blog.com/2010/04/calibers-compatible-with-standard-ar-15-5-56mm-lower/

A: This is a "Multi-Caliber" lower 5.56/223 - 300BLK - etc. Too many to name here so click this link : weapon-blog.com/2010/04/calibers-compatible-with-standard-ar-15-5-56mm-lower/

A: Robert, yes Sir. The lower will fit a 450 upper no issues.

A: Hi Robert, Yes, This will fit a bushmaster 450 upper without issue buddy.

A: Keith, Bushmaster states on their website (Our 6 position tele stock buffer tubes are the larger 1.14" diameter buffer tubes which are commercial spec). (https://www.bushmaster.com/resources/faqs) I would still confirm this with Bushmaster at Phone: 1-800-883-6229 or by online inquiry : https://www.bushmaster.com/contact