They came ups and inspected after disassembly looked good, ck'd inside bottom of feed lips for burrs found good finish for MFG spec's.... But after to many yrs in precision sheetmetal work I dressed all inner edges just a CYA thing, sure they would feed but hard for me not to be an anal tool and die guy. Remember Larry Vickers Rule .... FAL mags 18 in 20 and 28 in 30rd mags! Also remember, WHEN SECONDS COUNT, HELP IS JUST MINUTES AWAY!!!