Arsenal SAM7K upgrade work (Part 1).
This article covers the gunsmith work done by The AK Files member islandfocus2 on his Arsenal SAM7K milled AK pistol. His work included removing and replacing the front sight block and fake booster and replacing it with a threaded, functioning version. He also shortened and crowned the barrel.
In the author's words:
"I know that some of you were skeptical about trimming the
barrel because it may cause keyholing or that there won’t be enough gas
pressure to push the piston back. Well, I did a little research and compared the SAM7K vs. the
SLR 107-55 SBR. They both have the same twist rate and same size gas port hole. The SAM7K’s barrel is 2” longer than the SLR 107-55. I figured that if I just
carefully trim the barrel to the same length as the SLR 107-55, it shouldn’t be a
problem. So I did! I test fired 80 rounds today at 25-30 yards with NO
PROBLEMS! NO KEYHOLING AND NO JAMS on a 30rd rapid fire magazine dump! I’m
pretty sure that the SAM7K is still accurate beyond 30 yards. BUT, it’s hard to
control the SAM7K with using a 2 point sling as your cheek rest vs. a triangle folding
stock. (See photo’s below with targets at 25-30 yards)
I also don't like the NEW rear sight so I went ahead and
bought a new top cover with the old style krinkov rear sight from K-Var. (Which
I think was pretty expensive for a top cover). Over all, I LOVE IT! I'm very happy with the results! I've
attached LOTS of photos for everyone to look at my work progress from Start to
Finish.
NOTE: I would FIRST recommend pressing the unthreaded FSB
loose before trimming off the barrel. I've done the opposite by trimming off
the barrel first and had a hard time pressing out the unthreaded FSB. SO I END
UP DREMELING THE OLD FSB OUT. Took me awhile, I didn't want to scratch the
barrel. But, I succeeded! NO SCRATCHES!"
Remove the pin on the fake booster.
Lube with WD40.
Slowly start pressing the fake booster out.
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