How To Install The Accessory Rail Adapter On The MCK EVO

April 24, 2026

Quick Installation Steps

Identify if your firearm needs an adapter — Certain micro compact firearms (like the Sig P365) do not have a rail and require the EVO Micro Adaptor.
Select the correct adapter — The kit includes multiple adapters. Check the label inside the adapter to match your specific firearm.
Remove the screw — Use the included Allen key to remove the screw from your firearm (it comes prepackaged).
Attach the adapter — Clip the adapter onto the trigger guard.
Reinstall the screw — Put the screw back in with the nut in place. Tighten finger tight.
Install the beaver tail — Attach the correct beaver tail (pre-installed in this example).
Insert into the MCK EVO — Slide the firearm with the adaptor into the conversion kit until it clicks and the door locks securely.

0:05 In this video, we're going to show you how to install your adapter for your micro compact firearm.
0:18 Certain firearms don't have a rail and require an adapter.
0:25 The kit comes with the package that has your adapters in it.
0:36 Sig P365, which is what we're going to use here.
0:44 So, comes with a included Allen key.
0:53 You're going to want to make sure that you have the right adapter for your firearm. They will be labeled on the inside of the adapter.
1:04 All right, let's get into installing the adapter on the P365.
1:12 Just remove the screw. It's prepackaged.
1:20 Clip trigger guard.
1:36 Put your screw back in. Make sure your nut is there.
1:45 Finger tight.
2:17 Now it's installed.
2:21 I've already pre-installed the beaver tail that goes with this.
2:26 Now you simply put it in just like you would install any other firearm. Get your click. Close your gun door.
2:40 You're locked and loaded.