I am running the Slash Q buffer, just checked it after seeing your reply, says "9Q" on the head, big heavy sucker!
Maybee the latch had a flaw in it......
Is any latch any better than others? Midway offer the part in chrome $13.29 or matte black $6.99, both from DPMS. Any other sources for good stuff or is it just luck of the draw and I got a mediocre one in my RRA set?