Hylander
Single-Sixer
I want to get a MK III Standard Lower for my MK II 22/45.
Any issues putting an MK II 22/45 upper on an MK III Standard Lower
Fitting issues?
Compatability issues ?
Direct swap?
Any issues putting an MK II 22/45 upper on an MK III Standard Lower
Fitting issues?
Compatability issues ?
Direct swap?