New for 2019 is our Builder Series Aluminum Castle Nut. The Builder Series will offer a vast number of 2A Armament components that have been made with the AR builder in mind. Not only does the Builder Series offer extremely high quality products, but it also offers very competitive pricing.
|Condition||New in Box|
|Finish Per Color||Black|
|Manufacturer Part Number||2A-BSPT-1|