Don't be mistaken here - the Dedicated Technologies 358 WSSM uppers are AR-15's, not AR-10's. It's a WSSM, not WSM.

Yep, it's super short. I was thinking about one of those but got the proven .338fed instead. Wanted a 10 style platform anyway.

its not an AR-10 but an AR-15
RR

I tried all 3 of the big boomers and came to the conclusion the .458 Socom is the most practical for ME, and sold the 450 Bushmaster & 500 Beowolf. The 458 Socom uses rifle style bullets and is .458 so all 45/70 & .458 win mag bullets will fit, and not as expensive to load for or buy ammo for as the 500 Beowolf. The 450 is a nasty boar/bear gun within it's range though.

It fits an AR-15 lower...good news for me.

Here is a picture of my new fun gun.

Here is another pic.

I should not have read your thread d80hunter, as i started to covet your .450! I went and ordered a .450 Bushmaster upper today!

Ok. This has my full attention. Beautiful gun. It appears you went with the rifle length gas system over the carbine (shorter gas & barrell) length. Any reason?

Southern Michigan now allows straight walled rifle usage in the limited zone (old shotgun only zone). Since straight wall only, the .458 SOCOM is out. I am building a lower for a 450 bushmaster, but have conflicting information on the buffer and spring. Some say heavy to hydraulic buffer, some want the spring upgraded to strong, some say it runs fine on standard everything, etc.... Wanted your experience.

You will not be disappointed.