HomeGun PartsAR15 PartsAR15 UppersHECKLER AND KOCH (HK USA) MR556A4 UPPER KIT 5.56MM 11″HECKLER AND KOCH (HK USA) MR556A4 UPPER KIT 5.56MM 11″$2,179.00 HECKLER AND KOCH (HK USA) MR556A4 UPPER KIT 5.56MM 11″ Out of stock SKU: LIP|HK51000385 Category: AR15 Uppers Product ID: 101427 Related products Out of stock Add to WishlistRemove from Wishlist Add to Wishlist AERO AR15 STRIPPED UPPER FDE $119.99 Read more Add to WishlistRemove from Wishlist Add to Wishlist BAD XIPHOS 9MM STPD UPPER RECEIVER $239.00 Buy now Out of stock Add to WishlistRemove from Wishlist Add to Wishlist FORTIS BILLET UPPER RECEIVER $189.95 Read more
