Description

This listing is for a complete parts kit, consisting of every nut, bolt, rod, spring, bearing, pin, and laser cut part used in the process of completing or rebuilding the MP22.

This listing includes the following options:
16.5″ barrel liner

Pre-cast Bolt weight

pre-cut bolt guide rod (265mm)

and 1 magazine spring

For more info, or other options and configurations, see this listing.

For a list of what is NOT included, please see below.

Parts that are NOT included in this kit:

Any plastic parts

AR FCG

AR Safety spring and Detent (for HK Style safety, kit only includes rods for push button safety)

No Brace parts included :
No brace rods
No retract button screw
No retract button spring

We have worked closely with the creators of the MP22 to ensure that the parts offered in this kit are accurate, and consist of quality parts. Please note, there are discrepancies between this kit and the BOM listed in the MP22 documentation. This kit is more accurate than the BOM in the documentation. Please note, I’m not a machine shop, just a guy in my garage. You may be able to see some variances between parts. I work hard to provide a quality kit, however if something is wrong, please let me know, so I can make it right.

A few things you should know before buying this kit:

This is a hardware kit for a 3d printed gun. No plastic pieces are included, and no parts of this kit are regulated items.

Please be aware, I’m just a guy in my garage, not a full blown machine shop. If you select having the rods cut to length, please know they will be approximate, and some fitting may still be required.

The bolt weight will require fitting during installation. You will be exposed to lead. Please take adequate precautions to avoid contamination.

Kits are packed and cut to order – What does that mean? I pack most of the kit ahead of time (all of the nuts bolts and springs) and when you order it, I cut your rods to length, pack the options you selected, and make all of the pins in the kit (I make these by hand in my garage). I ship all orders in the order it was received. I’m calling this out, because while I have inventory on hand for 20 kits, if 20 of you order it tonight, it will take me at least a few days to get all the pins cut and get them all shipped.

Read-me

Complete list of parts included in this kit below:

PLEASE NOTE: This is a complex build, and a lot can go wrong. Please use extreme caution while using this kit to assemble your build. Follow the instructions closely, and don’t make guesses. If something isn’t working how the instructions say, you’re probably doing it wrong. We’ve done as much as we can to simplify the building of this kit, but at the end of the day, you are assembling a gun from scratch. Please use adequate precautions, including test firing remotely from a safe distance. Please inspect all parts closely to ensure they are in spec, and if something even seems a little off, its worth a reprint. Filament is cheap, hospital bills aren’t. Don’t take shortcuts, and have fun with your new MP22

DISCLAIMER: Usage or misuse of this product may lead to injury, exposure to chemicals known to cause cancer, and even death. This item is sold with no warranties or guarantees, either express or implied. By purchasing this product, you agree to hold the seller harmless for any consequences resulting from its use. You assume all legal liability for ownership, possession, and usage, and agree to indemnify the seller accordingly. It is your responsibility to understand and adhere to the laws in your jurisdiction.

California imposes additional requirements that cannot be met by this kit. These include mandates such as 3D printed firearms being manufactured by a California Department of Justice (CA/DOJ) licensed Federal Firearms Licensee (FFL) with a serial number provided by the CA DOJ. Moreover, all new designs must incorporate microstamping capability and undergo independent safety testing to be listed on the Unsafe Handgun Act verified safe list.

This item only ships within the US. International orders and shipping addresses outside of the US will be ignored.