M249/M249S/MK46/MK48 RECEIVER SHEET METAL. THESE COMPLY WITH ATF Final Rule 2021R-05F AND CAN'T BE SOLD WITH JIGS OR TOOLS TO HELP CONSTRUCTION. THESE ALSO CAN'T SHIP TO CIVILIANS INCA, CT, NJ, NY, WA, MD, DC, HI, RI, IL. CREDIT CARD COMPANIES WILL NOT ALLOW THEIR CARDS TO BE USED FOR THE PURCHASE OF THESE, CHECK OR MONEY ORDER ONLY.   WE DO THESE FOR MULTI CALIBER USE WITH LARGER EJECTION PORT. CALIBERS THIS SHEET METAL WILL WORK WITH INCLUDE 5.56 NATO, 7.62 NATO, 6.5 CREEDMOOR, 300 AAC BLACKOUT, 6.8 SPCII, 6.5 GRENDEL, 7.62X39 RUSSIAN, 260 REMINGTON ETC.

THESE ARE MIL-SPEC AND TAKE ALL MIL-SPEC WELDMENTS WITHOUT ANY MODIFICATIONS, THIS SAVES A LOT OF ASSEMBLY TIME AND ARE THE BEST AVAILABLE.  THIS SHEET METAL WELDS EASY, HEAT TREATS INTO A TOUGH RECEIVER AND PARKERIZES INTO A MIL-SPEC FLAT BLACK COLOR.

WE BUILD MILITARY ISSUE MACHINE GUNS AND CIVILIAN LEGAL SEMI AUTO BELT FED RIFLES WITH THIS SAME RECEIVER SHEET METAL.

ALL NFA LAWS APPLY