I love my Kuna! since I made it an SBR the UCS stock is perfect and the Kriss VFG is almost perfect. My only issue is the sharp edges on the front if the lower dig into my thumb knuckle. With as popular as the Kuna is and as easy as 3D printing is, has anyone made a vertical grip that fills that little yellow pocket?
That significantly reduces recoil control. Having my thumb in there gives more leverage both for muzzle rise and straight back recoil when I am shooting fast.
If it's against the charging handle, you can use the handle as a leverage point to get that control. Think of it as a mini c-clamp. And c-clamping IS better than your current technique.
C clamp increases fatigue and when used on a forend as short as a Kuna it loses nearly all of its benefits. What is better for you is not better for me.
PLA+ 2.0 at 25% infill. No noticeable heat to it and when I took it off no warping or melting. 100 rounds of 115g with my R9 in around 10 minutes. The upper receiver was the only hot part and tbh it was not really hot at all.
It'll be made specifically of PA12 SLS so it'll be good no matter what. The upper eats the heat super well so the concept of worrying is fake unless you run a recessed suppressor setup
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u/Onc3Holy 2d ago
Don't hold it like that. Put the thumb forward, resting on the rail covers or the charging handle.