The kit includes pivot pins (front and back), recoil spring/buffer retention lock, mag release, and all relevant HPA innards prefitted.

An AIRTAC MOE Grip is included, and the airline is pre-routed through for your convenience.

You will need to fit an MWS trigger box, fire selector, and stock (receiver has standard MWS spec buffer tube threads). All of these can be taken from your donor MWS or purchased separately.

We offer a lifetime warranty against manufacturing defects. This covers material and workmanship issues but does not cover normal wear or misuse.

Our receivers feature a Cerakote finish which best matches Marui / DE Black Receivers (H-146). Other colours are available upon request for an additional fee.

The HYP-AR lowers for Double Eagle and Tokyo Marui replicas are different to one-another because the factory DE and TM lowers are not exactly the same.

TM uppers will fit the DE cut receiver (with visible gaps), but DE cut receivers will not fit the TM receiver.

We have explicitly tested the Noveske N4, Ghetto Blaster, BRN180 (DWS180), and LUPUS. All are compatible

We have explicitly tested the CQB-R, URG-I and MK18. It is likely all Tokyo Marui MWS will be compatible due to TM's adherence to standards.

Yes, Instructions are available on the product page for each receiver. Installation at home is very easy, You can read through the instructions beforer purchase to get a feel for the process.