AR-15 dedicated upper

[MarkCO]

26965

16" threaded match grade barrel, Carbon Feather Handguard. 2 pounds 15 ounces for the upper...4.5 pounds complete on a GWACS lower. Printed a 0.3" 50 yard 5 shot first shots group.

Oops, dedicated .22LR upper if it was not obvious from the forum it is posted in.

[Great-Kazoo]

That a lightweight BC bbl mated to an ar-15 bbl extension?

[Delfuego]

Very sexy!

[vossman]

Yes, very sexy.

[MarkCO]

That a lightweight BC bbl mated to an ar-15 bbl extension?

Stainless sleeved aluminum barrel with a collar and a .22RF bolt assembly. The receiver, CH and Handguard are AR-15 parts. The bolt assembly and barrel are specifically made to be used with them for a dedicated .22LR upper.

[MarkCO]

I put this on a MAG lower with an ACE ultralight stock and then my kids ran this at the Ruger match, about 600 rounds straight, not a single malfunction. Groups Federal bulk under an inch at 50 yards.