[ajole]

So, here’s the deal. I’ve got a few KE Arms polymer lowers. But I really don’t have a light upper. Or at least, I didn’t have. Recently I ordered an “ultra light” Bushmaster barrel, got a Strike Industries hand guard to replace the round carbine style that came “free” with the barrel, and tonight I put them all on an upper.

The thing weighs 3.8 lbs with a bolt, CH, A2 flash hider and a tritium SeeAll sight on a riser. The KE Arms lower is 1.77 lbs with the buffer and spring in it. Total weight is 5.69 lbs, with a full rifle stock. Sling, mag and ammo will add some, of course.

It feels like a toy. I’m really excited to see how it shoots. But now I need another KE arms lower! It never ends.😩

 

[backbencher]

Nice! My stepdaughter's 27" pencil w/ a 3-9x scope but w/o the Chasspot bayonet fixed is just over 8 lbs, IIRC. Rifle + 3" gas, LW carrier, no weights in the buffer. Just got a fold AR, need to put it on a diet.

 

[Visper]

Great topic, how did I miss this... too late now but i will weigh a few this weekend. Curious myself. Of course I will have to include pics... are we talking 16"+ barrels or do AR pistols count?

 

[greg_r]

I built a lightweight AR. Lots of aluminum, could of gone carbon fiber with a lot of stuff. It was lighter but expensive. IIRC the finish product was around 6 pounds. It shot a few rounds into a fairly tight group, bot after the pencil barrel heated, it threw groups as big as a sombrero.

Here it is in a load out photo.

 

[ajole]

Great topic, how did I miss this... too late now but i will weigh a few this weekend. Curious myself. Of course I will have to include pics... are we talking 16"+ barrels or do AR pistols count?

16” barrel, any stock or brace.
My A2 sized rifle stocked polymer lower is what I’m using, I’m not sure my aluminum carbine lowers are any lighter, but I’m going to weigh a few this weekend.

 

[Visper]

OK, so I weighed a few (Finally I know...) and my lightest one is 7.6lbs. This is my only pencil barrel, most others are Govt or HB. That is with everything on it. I do have a poly lower or two so that would make a difference, I may try swapping for the heck of it.

Most of my others are 8 to 9.5 with one topping the 10lb mark at 10.5lbs...

Here is my lightest: