Home / AR Lower Components / SOLGW MIL-SPEC RECEIVER EXTENSION CASTLE NUT “Sons of Liberty Gun Works Blaster Starter Kit” has been added to your cart. View cart “Sons of Liberty Gun Works Blaster Starter Kit” has been added to your cart. View cart SOLGW MIL-SPEC RECEIVER EXTENSION CASTLE NUT$10.44 4 in stock [] SOLGW MIL-SPEC RECEIVER EXTENSION CASTLE NUT quantity Add to cart UPC: 785939517545 SKU: CASTLENUTMS Category: AR Lower Components Tag: solgw Product ID: 16084 Description Description SOLGW MIL SPEC RECEIVER EXTENSION CASTLE NUT You may also like… SOLGW AMBI SAFETY SELECTOR KIT $33.25 Add to cart Related products Out of stock SIONICS Lower Parts Kit – Deluxe – Single Selector $99.95 Read more Out of stock FORWARD CONTROLS DESIGN EMR-A ENHANCED MAGAZINE RELEASE AMBIDEXTROUS SERRATED STD LEVER $66.50 Read more Out of stock Magpul B.A.D. Lever – Battery Assist Device – AR15/M4 $31.30 Read more Magpul Enhanced AR Magazine Release $18.95 Add to cart