Out of Stock600978Call for PriceReplacement Shank for the M2HB Barrel Extension. US GI, Good Condition. B8925$49.95M2HB Early Style Breech Lock . US GI, Exc. Condition. Out of Stock5504082Call for PriceM2 Bolt. M2HB Barrel Extension, Stripped. Barrel Extension parts are in stock. US, NOS Condition. 7266134$19.95M2HB Barrel Lock Spring. US GI, NOS Condition. Out of Stock5504082-ASSYCall for PriceM2 Barrel Extension. M2HB Barrel Extension, Complete with all parts. US, NOS Condition. 7161302$89.95M2HB Late Style Breech Lock . New Condition. 6008784$8.95M2HB Breech Lock Pin. US GI, NOS. Condition. M2HB Barrel Extension Browning Machine Gun Parts Search for: Search Showing all 7 results Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low Sort by name: A to Z B8925 Breech Lock, Early, M2HB. $49.95 7161302 Breech Lock, Late, M2HB. $89.95 6008784 Pin, Breech Lock, M2HB. $8.95 7266134 Spring, Lock, Barrel, M2HB. $19.95 OUT OF STOCK 5504082 Barrel Extension, Stripped, M2 .50 cal. Call for Price OUT OF STOCK 5504082-ASSY Barrel Extension, Complete, M2 .50 cal. Call for Price OUT OF STOCK 600978 Shank, Barrel Extension, M2HB. Call for Price