The Firing Line Forums - View Single Post - Gunsmith's out of the box review of the E3 Arms Omega 15 Poly Lower

semi_problomatic · September 23, 2013, 11:00 PM

Couple thoughts...

When you put an upper on that lower it's going to act like a lever against the pins... I wonder how well the plastic is going to hold up to that.

Same with the flat the hammer rest against. I've seen the GI ones begin to deform with guys releasing the hammer on an empty lower.

And then there's that polymer buffer tube with a steel spring sliding back and forth through it...

Polymer pistols have a couple differences, besides the 5lbs of metal sitting on top and way forward, my glock has steel tabs reinforcing the slide area. My ruger doesn't and after 10 years it has a bit of wear. But on both there are much thicker tabs holding the slide on, and the side to side torque is very low.

And last, as far as any weight loss..

Take a cz shadow and a cz phantom. The shadow weighs in at 2.6#'s the phantom 1.8#'s. Thats a huge chunk of weight. Which makes it completly worth it to some. To put that in perspective: the AR lower would have to drop the weight of a 6.5# gun by 2 #'s to equal the weight savings of 8 oz in a pistol.

2.6-1.8=.8
.8/2.6 = .307
.307*6.5 = 2#

So, I dunno. Seems about as worth while as a carbon fiber lower.

September 23, 2013, 11:00 PM	#8
semi_problomatic Senior Member Join Date: July 27, 2009 Location: Ft. Polk Posts: 883	Couple thoughts... When you put an upper on that lower it's going to act like a lever against the pins... I wonder how well the plastic is going to hold up to that. Same with the flat the hammer rest against. I've seen the GI ones begin to deform with guys releasing the hammer on an empty lower. And then there's that polymer buffer tube with a steel spring sliding back and forth through it... Polymer pistols have a couple differences, besides the 5lbs of metal sitting on top and way forward, my glock has steel tabs reinforcing the slide area. My ruger doesn't and after 10 years it has a bit of wear. But on both there are much thicker tabs holding the slide on, and the side to side torque is very low. And last, as far as any weight loss.. Take a cz shadow and a cz phantom. The shadow weighs in at 2.6#'s the phantom 1.8#'s. Thats a huge chunk of weight. Which makes it completly worth it to some. To put that in perspective: the AR lower would have to drop the weight of a 6.5# gun by 2 #'s to equal the weight savings of 8 oz in a pistol. 2.6-1.8=.8 .8/2.6 = .307 .307*6.5 = 2# So, I dunno. Seems about as worth while as a carbon fiber lower. __________________ Freedom's just a word. If I'm gonna die for a word, my word is jello...