GreySmoke2
Member
Anyone familiar with this dedicated .22lr upper.
http://blackdogmachinellc.net/tactical-solutions-ar-15-m4-upper-receiver-barrel.aspx
Does it work well with a RRA Lower? Is is dependable ie Low or no FTL, FTF etc.
http://blackdogmachinellc.net/tactical-solutions-ar-15-m4-upper-receiver-barrel.aspx
Does it work well with a RRA Lower? Is is dependable ie Low or no FTL, FTF etc.