This is the short barrel (10 inches I believe) fullauto compatible 22lr conversion kit with the fullauto trip, anti bounce weight, and spring-loaded anti bounce ball detent. This uses a dedicated barrel made for the MRP platform (MRP is NOT included). It includes everything you need to convert your MRP chassis to 22lr. Also included are two complete spare extractor kits, with all springs, and one mag. An A2 flash hider is installed on the barrel.
All NFA rules apply. This must be used with either a fullauto lower or it may also be used with a SBR lower. This will not convert a semiauto firearm to fullauto. Please do not inquire if you don't own a fullauto M16 or SBR AR15.
Spikes no longer makes these and these are the only dedicated MRP 22lr conversions. It is a really sweet conversion for the MRP.
I ran a total of four mags through this and am just not at all into 22lr machineguns. Now it just collects dust in my spare parts bin. My loss is your gain.
The price is $600 shipped/insured. Payment must be US Postal Money Order.
Email me at joshuasurowitz (at) gmail (dot) com if interested.