TNA SKS mag well in ati stock

[u/Cbrad1609]

I bought a wood stock sks with a TNA max adapter installed. Guy added an ATI stock which he said he sanded so the gun and adapter would fit. But lo and behold it doesn’t fit at all. Any advice or tutorials on how much to sand and or dremel out to make it fit? Love the wood stock but the length of pull is too short for me.

[u/Whoopity_Longjohn]

Ive never seen this adapter before, is it for 7.62x39 stanag mags? And if so does a pistol mag exist?