6131253$4.95Accelerator/Breech Lock Pin. US GI, NOS Condition.6147230-7.62$29.957.62mm Barrel Lock Spring, M1917, M1919, M37, IMI. New Condition.6147230$9.95.30 cal. Barrel Lock Spring. US GI, NOS Condition.B147214$9.95Breech Lock. US GI, NOS Condition.FN-30-BAR-EXTCall for PriceFN-30 Barrel Extension Assembly. Used Condition.C64139$49.95Barrel Extension, Stripped (Original US, NEW IN THE GREASE), .30 caliber, M1917, M1919. US GI, NOS Condition.FN-38/39-BOLT/BE$499.95FN-38/39 Aircraft Bolt Assembly (Incomplete) and Barrel Extension. Used Condition. M1919 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 C64139 Extension, Barrel. $49.95 B147214 Breech Lock, M1919. $9.95 6131253 Pin, Accelerator/Breech Lock, M1919. $4.95 6147230 Spring, Barrel Lock, .30 cal., M1919. $9.95 FN-38/39-BOLT/BE Bolt Assembly, with Barrel Extension, FN38/39. $499.95 FN-30-BAR-EXT Barrel Extension Assembly, FN30. Call for Price 6147230-7.62 Spring, Barrel Lock, 7.62mm, M1917, M1919, M37. $29.95