Home / AR Lower Components / SOLGW MIL-SPEC RECEIVER EXTENSION CASTLE NUT You cannot add "SOLGW AMBI SAFETY SELECTOR KIT" to the cart because the product is out of stock. Out of stock SOLGW MIL-SPEC RECEIVER EXTENSION CASTLE NUT$10.44 Out of stock Want to be notified when this product is back in stock? Notify me 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… Out of stock SOLGW AMBI SAFETY SELECTOR KIT $28.50 Read more Related products SOLGW H2 BUFFER AR15 $43.69 Add to cart Aero Precision Enhanced Pistol Receiver Extension $35.99 Add to cart Out of stock SIONICS Receiver Extension Kit w/ H2 Buffer & Sprinco Blue Spring $99.95 Read more GEISSELE MARITIME BOLT CATCH $29.00 Add to cart