Ultralight Ultralight Rifles

[Trackselk]

How does the rear bolt attach?

I'm still pretty new to AR's, but the 2 screw holes for the detent ball arm/ gas key is where I bolted it strait onto. I'll try to post a pic when I'm home in a week. Very solid, pulls and pushes strait in line with the bcg

 

[Trackselk]

I forgot to mention that the aluminum spacer also keeps the bcg from rotating and avoiding full battery. I filed it to within 1 thou of the width of the solo detent arm. Without it it wouldn't go into full battery

 

[SoFLBeachBum]

I forgot to mention that the aluminum spacer also keeps the bcg from rotating and avoiding full battery. I filed it to within 1 thou of the width of the solo detent arm. Without it it wouldn't go into full battery

That’s well thought out, and that the bolt carrier rides smoothly is a plus. I read the earlier posts about issues with larger cartridges in the Solo, I wonder if your design solves that problem. And plus, it is super light and minimalist.

 

[Trackselk]

That’s well thought out, and that the bolt carrier rides smoothly is a plus. I read the earlier posts about issues with larger cartridges in the Solo, I wonder if your design solves that problem. And plus, it is super light and minimalist.

Thanks, I should know pretty soon as I test sticky undersized brass and NAS3 cases in the new ackley chamber as hot reloads. If I made the grip part of it a lot longer I could strike it with my palm to extract, I mean, it would still be a lot faster than a muzzleloader.
Edit: make that *oversize brass (for the ackley chamber/crush fit)

 

[schmidty3]

Found a neat trick.

Faxon barrel with integral flashhider machined in (they also have a brake option). 1# 5oz.

Obviously not ideal for can use. But saves some weight on a muzzle device and gives you a "14.5" barrel" without doing a pin and weld.

May not be ideal for "hunting". But Im putting together a car-15ish build. ~5#. But a2 sight and midlength gas. Truck gun. And maybe a meat packing gun in grizzly country. And a lot of fun/vibes in 3 gun type activities.

 

[yfarm]

Just let the the outside of the barrel rust. It won't harm it. In addition, every time a bit of rust is knocked off and replaced with new oxidation, the barrel gets measurably lighter. Win-win!

I use ospho as a rust converter/ primer before painting on steel. Has anyone every used it on a barrel as a surface finish?

 

[StupidLightweight]

View attachment 1073910View attachment 1073909
May not be ideal for "hunting". But Im putting together a car-15ish build. ~5#. But a2 sight and midlength gas. Truck gun. And maybe a meat packing gun in grizzly country. And a lot of fun/vibes in 3 gun type activities.

Share more pics when it’s finished! I love retro ultralight builds. You may consider a slick side A1 upper to keep it even more simplistic if you’re a righty.

 

[Luke S]

Here is a close up of my rail ground down.

I really like the finished version. The center of gravity is lower. Very easy to carry.

 

[StupidLightweight]

Clever grinding. I like it!