[Why the fin ejector?]

I was talking to a coworker at the shop about PCCs and we were curious why the fin ejector is used vs the plunger ejector in the bolt like an AR? Was it just a simple as adapting what works in a handgun and transferring it?

[Buffer Pad?]

Curious if anyone has tried using a rubber buffer pad in the bottom of the buffer tube to help absorb recoil/buffer impact to the rear? It would limit the travel so that would have to be taken into account, but I would think a buffer impacting a rubberized stop vs the aluminum tube would be beneficial.

Thoughts?

[Best PCC Optic]

Any experience with Holosun gold reticle? Just looking through them at the shop, the gold seems to work best with my astigmatism. My only question is how is gold outside? Everything pops indoors.

Basically trying to decide between 512 gold or 510 red/green.

 

[Kynshot buffer comparison.]

9 minutes ago, ysrracer said:

At some point you're chasing unicorn farts. Pick a direction, and go shoot it.

Totally agree. I am just making sure I have an understanding of which unicorn fart flavor I am chasing. Not trying to reinvent the wheel, but learn from y'all's experience so I am making an informed decision.

[Kynshot buffer comparison.]

1 minute ago, Ner said:

The shortest stroke that work 100% without malfunctions will give you fastest and flattest result 

Thanks

What would the difference be if you got there with say a 1" weighted spacer in front of the buffer vs a 1" spacer behind the spring? 

[Kynshot buffer comparison.]

So am I correct in assuming a shorter short stroke, say just enough to reset trigger would be most desireable for faster shooting? I am curious if a super short stroke with a little heavier overall buffer weight would be better than the lighter weight and short stroke?  Would it be better to have a longer buffer weight instead of rear "quarter" spacers, travel is the same, one adds weight to the system, the other compresses the recoil spring more.

I'm about to start experimenting and just thinking out loud. Thanks!

[Kynshot buffer comparison.]

Ah OK, so using the A5 tube length allows you to use rear spacers to fine tune how much short stroke you want with more room than the carbine tube.

It is my understanding, generally speaking more weight in buffer is a "softer" shooting gun, but a short stroke is faster and less dot movement for faster double taps. So the latter tends to take the LRBHO out of the equation unless you get a JP ss bolt, etc.

 

I'm in the middle of a PCC build and trying to decide which route to go.

Thanks!

[Kynshot buffer comparison.]

What's the purpose of the rear spacer at the bottom of the buffer tube? If the difference between an A5 and carbine tube is 0.75", what are you going for? 
I understand putting a spacer weight in front of the buffer to add weight to the system, just trying to learn the other side.

Thanks!