Not to jack this thread... but I've been wanting to put a DD rail like this:
on this:
It's a 7.5" barrel.
Maybe Farmboy can answer
I'm thinking the DD AR15 LITE RAIL™ 7.0, CARBINE might fit...
and should I (how do I) replace the heinous gas block on this and with what). Or in this case is it safe to D-r-e-m-e-l it LOL

on this:

It's a 7.5" barrel.
Maybe Farmboy can answer
I'm thinking the DD AR15 LITE RAIL™ 7.0, CARBINE might fit...
and should I (how do I) replace the heinous gas block on this and with what). Or in this case is it safe to D-r-e-m-e-l it LOL