Product Description AR-15 A2 Spacer, aluminum, in black. Mfg: Luth-Ar Ar-15 A2 Stock Spacer Aluminum - Ar-15 A2 Stock Spacer Aluminum Black at Brownells.com Browse all Brownells.com deals $5.39 Out of Stock Buy Now at Brownells.com Secure checkout Easy returns or compare prices Amazon eBay Product Details Category Buffer Tube Parts Brand Luth-Ar MPN A2S-01 Luth-Ar