Spike's Tactical .22lr conversion kit. Comes with the .22lr bolt, extra spring to tune the kit, gas plug, and one Black Dog 27 round full size magazine. New

The spikes tactical conversion kits sport some unique features not found in any other current conversion kits.

Feature O-rings on the chamber adapter to keep the bolt centered in the .223 or 5.56 chamber and to increase the back pressure by sealing the adapter and not allowing so much carbon and gases to blow back. Comes with a solid plug to take the place of your gas tube for those of you who shoot a lot or want to dedicate your 2.23 or 5.56 upper to .22lr. In addition these feature electroless nickel finish. The auto trip kit is for those of you who currently have an M16 lower and would like to use this bolt in full auto. (It DOES NOT make your semi auto lower run full auto, it only enables the bolt to work on a full auto lower).

ATTENTION: The following locations have magazine restrictions; please check for your local law and regulations before placing an order.

California- No mags over 10rds without a high-cap mag permit.
Hawaii- No handgun mags over 10rds.
Massachusetts- No mags over 10rds.
Maryland- No mags over 20rds.
New Jersey- No mags over 15rds.
New York- No mags over 10rds made after 1994 (i.e. none marked Law Enforcement only).
Chicago-No mags over 10rds.
Washington DC- No mags over 10rds.