dust cover nub barely works at all...if ever.
With CNC steel parts....it's one thing to crank out parts and I know each setup/cut is a lot of time/effort...and that finishing is a lot of effort...but please have a mind to how each piece rides/runs/contacts another.
Sometimes the stock parts look "soft"...almost like the molds weren't crisp. But in some instances a sharp corner of hard metal will only serve to carve out the softer part in a no-good sort of way.
If I wanted to make parts I would make:
1. Extended bolt activation levers for the mags (the "L" shaped piece that sticks up to trip the bolt catch...the tip could be higher with many mags).
2. An open-bolt M4 adjustment key. It's a bitch to reach
3. Tighter hopup unit...there's a lot of space/gaps/movement with the stock one
4. Receiver shims
5. bolt catches....and a modded bolt with a replaceable HDMW plastic corner/edge for the bolt stop to hit...and replacement bits for when it wears.
6. drop in trigger group with nicer sear/engagement angles. Being able to adjust travel stop and take up points would be nice.
7. weaker (winter) and stronger (summer) buffer springs...and a stopper with springier material)
8. Replacement Push-button sling stud inserts
For the PDW...I'd like to see a skeletonized lightweight bolt...the stock and RATech ones are pretty heavy.
- I'd also like to see a better recoil "foot" for the spring guide rod.
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