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I got these two grip frames in a lot and I have been unable to tell if they are original HK Semi frames or converted SEF frames. From my understanding most semi frames were marked 0,1 that were made by HK. However these are both S,E and S,F respectively. Both are marked the same on the opposite side as well. Can anyone identify these?
The first looks converted, however lacks the third marking for full-auto or any evidence of there every being a marking there. It has a dimple block on the selector half-wheel which looks factory as it is a perfectly rounded but also has 3 depressions for the selector to lock in, with one being past the dimple block for full auto.
The second looks like an original frame. The lettering size looks correct and it has no dimple block and only 2 depressions on the half-wheel. However I've never seen a semi frame that is "S" on top with "F" all the way at the bottom of the frame instead of in the middle.
The first looks converted, however lacks the third marking for full-auto or any evidence of there every being a marking there. It has a dimple block on the selector half-wheel which looks factory as it is a perfectly rounded but also has 3 depressions for the selector to lock in, with one being past the dimple block for full auto.
The second looks like an original frame. The lettering size looks correct and it has no dimple block and only 2 depressions on the half-wheel. However I've never seen a semi frame that is "S" on top with "F" all the way at the bottom of the frame instead of in the middle.
