A group of items that function to open and close the breech. It may include a semiautomatic drop block, case extraction, and electric firing. It may provide manual and/or automatic opening of a breech, ejection of spent cartridge case, and automatic closing when chambering the next round.
Classification: Part and accessories of articles of headings 9301 to 9304, nesoi
NSN 5920-00-788-0304
NSN 6130-01-362-1233
NSN 5910-00-371-9915
NSN 6685-01-632-3583
NSN 5915-00-824-7163
NSN 6135-01-247-5660
NSN 6610-01-468-6880
NSN 5835-01-386-4027
NSN 5895-00-774-7885
NSN 5999-01-477-7353
NSN 5915-01-414-8607
NSN 5998-00-181-3841