I believe the made a change a couple years ago changing the dimensions a bit so that it could clear most piston designs.
I had a newer carbine moe fde on my piston. I did take it upon myself to call around LGS to find fresh inventory to buy it, because Maggy neglected to differentiate the two versions.
No experience wth the older version.
Assumption is the mother of all ****ups.
Know what you know, Know what you don't know. -Paul Pedzolt
"Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul
Last edited by AgentTikki; 02-09-2012 at 02:40 PM.