[ArcticNemo]

There is a condition certain people have, where they can't leave a thing as designed or purchased. These damaged individuals have to tweak, improve, or otherwise change a product or procedure just for the sake of doing it.
My battle with this disease has me playing with a bullpup design for the CMR, replacing the grip and lower rail with new fitment and carving an extra notch to hold the stock at 26.0625” overall length. Room for a couple spare mags in the stock is a given, 90 rounds on board for fun all week... It started with a feed ramp and progressed quickly from there.

Heaven help me when I get a second unit just to experiment with 😔

 

[Liberty4Ever]

There is a condition certain people have, where they can't leave a thing as designed or purchased. These damaged individuals have to tweak, improve, or otherwise change a product or procedure just for the sake of doing it.

Alternative diagnosis: Guy

Alternative diagnosis, for advanced stages of the disease: Engineer

...and carving an extra notch to hold the stock at 26.0625” overall length.

That's a very precise number.

Heaven help me when I get a second unit just to experiment with

 

[RDHart]

There is a condition certain people have, where they can't leave a thing as designed or purchased. These damaged individuals have to tweak, improve, or otherwise change a product or procedure just for the sake of doing it.
My battle with this disease has me playing with a bullpup design for the CMR, replacing the grip and lower rail with new fitment and carving an extra notch to hold the stock at 26.0625” overall length. Room for a couple spare mags in the stock is a given, 90 rounds on board for fun all week... It started with a feed ramp and progressed quickly from there.

Heaven help me when I get a second unit just to experiment with 😔

Hey ArcticNemo!
the bullpup design for the CMR sickness started in me when I put a FWD grip "looks like this- Not exact 1" on my CMR.
(Amazon.com : Polymer, Lightweight, 20mm Hand Accessoris Tool for Outdoor Sports : Sports & Outdoors)

and though hey with this new handhold, if I moved the trigger/handgrip just forward of current location & left the stock closed... WOW it fits me really well... I'm resisting at the moment "actually I'm in the process of moving & both my lathe and mill are crated."

Roger ?:^)

 

[CMR30Operator]

Think 2x before modifying your CMR. See my thread here on Keltec’s new hostile parts policy.

 

[ArcticNemo]

Alternative diagnosis: Guy

Alternative diagnosis, for advanced stages of the disease: Engineer

I did fall into engineering work by fault of my own nature... Got it in one try, good job 👍

 

[Tony Jay]

Modification sickness keeps many gun-health folks employed from manufacturers to gunsmiths. Hey - if it makes you more effective with the piece, go for it. Scopes for failing eyes, better fitting grips for non-standard hands, red dots, lighter triggers (within reason, especially for self-defense guns), corrosion-resistant finishes for hostile environments, etc. are all good. However I draw the line at ridiculous modifications like AR-type collapsible stocks for pump shotguns (Rem 870 & Mossberg 500/590), multiple accessory rails, million lumen lights, etc. that are usually detriments to one's use. OK, it's still a free country - sort of - but the engineer in me (retired as one after 40+ years at it) dictates only effective, efficient solutions.

 

[buzzsaw]

Alternative diagnosis: Guy

Alternative diagnosis, for advanced stages of the disease: Engineer



That's a very precise number.





View attachment 54694

I think a rifle has to have an overall length of 26 inches or greater. It looks like he is building in a tolerance to make sure he's legal.
In a just world, that unconstitutional💩 known as the NFA would have never seen the light of day.

buzzsaw