Hello CGN'ers,
I've been wanting to replace the collapsible stock that comes standard on the Derya MK12 & MK20. with one made by Magpul. If you decide on using a Magpul stock make sure you get the Commercial spec stock as the Milspec stock doesn't fit well, it's extremely tight. The buffer tube size on both Derya rifles is 1.162 in. which is extremely close to the commercial spec stock which measures about 1.168 in. I put the commercial spec Magpul ACS on both rifles and it fits and works great. There is a knurled cap on the end of the buffer tube that may need a bit of grinding to smooth it out. I had to grind a wee bit on my MK12 but the MK20 fit with no problem
This is more of an info thread just in case anyone wants to replace the OEM Derya stock with a Magpul. I have enclosed some pics of the Magpul ACS on my MK20. Fitment is the same on the MK12.
I've been wanting to replace the collapsible stock that comes standard on the Derya MK12 & MK20. with one made by Magpul. If you decide on using a Magpul stock make sure you get the Commercial spec stock as the Milspec stock doesn't fit well, it's extremely tight. The buffer tube size on both Derya rifles is 1.162 in. which is extremely close to the commercial spec stock which measures about 1.168 in. I put the commercial spec Magpul ACS on both rifles and it fits and works great. There is a knurled cap on the end of the buffer tube that may need a bit of grinding to smooth it out. I had to grind a wee bit on my MK12 but the MK20 fit with no problem
This is more of an info thread just in case anyone wants to replace the OEM Derya stock with a Magpul. I have enclosed some pics of the Magpul ACS on my MK20. Fitment is the same on the MK12.
