I have upgraded the K1A1 by replacing the collapsible wire butt stock with a more traditional and rigid collapsible butt stock, I added an improved pistol grip and a railed hand guard. The balance of the rifle is greatly improved, the butt stock no longer flexes, the grip is more comfortable and I am finally able to mount and optic on the rifle. I am very happy with the results, but I am considering a folding butt stock that is available.
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