Description
This is a USA made, brand new RCM drop in carrier with a removable sear trip. THIS FITS THE HK SP5K, Zenith K, AP5P AND THE MKEK GUNS! Any “K” size pattern receiver. It allows you to run a legal posti pack, registered sear or registered trigger pack in your HK SP5K, MKEK, without modifying the receiver block plate. The benefit is being able to use your legal full auto trigger packs while keeping the host weapon a title 1, none NFA item. The host weapon retains its value and remains unmodified. You install the carrier as normal, move it forward past the carrier block plate and then install the sear trip. Trip piece is only tightened to 10-12 INCH pounds, if you want to use thread locker, we recommend the one in the product pictures, ONE drop only. Now you have a full auto carrier within your receiver. Price includes the carrier, modification and machine work done to the carrier, tool steel sear trip piece, Torx screw and recoil buffer/SP5 spacer*. K size carriers do not come with or use the blue buffer, only the full size carriers come with and use the blue buffer.
ALL NFA RULES APPLY!
https://youtube.com/shorts/NGmwp1dImYs?si=DWSmsIqeWq0B0v8D
Heres a factory stock HK SP5 running our full auto carrier and buffer.
*ATTENTION! This carrier DOES NOT require the SP5 (full size) recoil buffer. The SP5K doesn’t require the sear trip to be removed to install the full auto carrier, only the MKEK.
Armaments official policy is to have a qualified gun smith install and function test this part. Please refer to the installation video below.
Sean Serafin (verified owner) –
Used in both a Zenith and HK SP5K. Works flawlessly. Love this capability to run FA without modifying the receiver. Requires more effort to remove the carrier for cleaning etc, but well worth it. Can’t recommend this enough. Only other option is to alter the receiver (register it as a machine gun) or to try and shave the top of a regular carrier (sketchy).