Home / AR Lower Components / SOLGW MIL-SPEC RECEIVER EXTENSION CASTLE NUT View cart “Magpul Enhanced Trigger Guard, Aluminum – AR15/M4 – Black” has been added to your cart. 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 Magpul ASAP – Ambidextrous Sling Attachment Point $30.35 Add to cart Aero Precision Enhanced Pistol Receiver Extension $35.99 Add to cart Magpul B.A.D. Lever – Battery Assist Device – AR15/M4 $31.30 Add to cart GEISSELE MARITIME BOLT CATCH $29.00 Add to cart