U guys been bragging about em and I'm late to the party..but wow these things are so cool..I put one on my 1322 carbine using a crosman CCS brake and 1 on my 1994 397 looks right at home.....zero install problems ,although had to file a little on the wgrs 54 to fit breech on the 1322....both took just a minute to zero spot on out to 25 yards....no bulky scope ...guns are so easy to handle...I see more peeps in my future...many thanksPs...the apertures are like looking down a pipe...so smaller ones coming....