What are rear stock options for SDS Lynx 12 Gauge shotguns?

A fellow messaged me the other day and asked what options he had to replace the light fixed stock on his SDS 12 gauge shotgun. I told him that he has a lot. The rear of an SDS is very similar to an AKM or AK-74.

The rear piece that holds the stock in is called a “trunnion” they are what provide the real strength in the sheet metal receiver. The stock is held in place by the two screws you see. Be sure to use a blade screw driver bit that completely fills the slot. You can see that whomever installed the screws at the factor did not do this and slightly deformed both slots by using an undersized screwdriver or blade bit.
You may need to use a wood dowel, or whatever you have handy, to tap the stock out. I like using a hardwood dowel because it doesn’t bend or scratch things all up.
I used a Rifle Dynamics adapter that lets you convert from the AK-rear to an AR/M4 buffer tube. Both the Rifle Dynamics adapter and the one sold by PSA are very well made.

With the rear stock removed, you can use any AKM/AK-74 traditional wood or polymer stock that you want or adapter to use an AR-style stock. Read up online before you buy because there are tons and tons of options and combinations for you.

I hope this helps you out and here are a few examples for your consideration:


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