Lightweight Vs Non LW Uppers
You are Unregistered, please register to use all of the features of!    

Firearm & Gun Forum - > Long Guns > Auto & Semi-Auto Discussion > AR-15 Discussion >

Lightweight Vs Non LW Uppers

LinkBack Thread Tools Display Modes
Old 04-12-2013, 04:02 AM   #1
Feedback Score: 0 reviews
Join Date: Aug 2011
Location: Marquette,MI
Posts: 13
Default Lightweight Vs Non LW Uppers

So I'm doing my first AR build and I decided I want a BCM Upper to go with the BCG I have. They have :

In stock right now. So I was wondering what the difference is between this LW Upper and lets say :

Also what are the pros/cons, aside from the obvious that the LW is lighter? Thanks guys and I'll be starting a build thread soon with more questions !

Smythe222 is offline  
Reply With Quote

Join Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join Today! - Click Here

Old 04-12-2013, 05:16 AM   #2
Feedback Score: 0 reviews
AgentTikki's Avatar
Join Date: Oct 2010
Location: City of Lost Angels, Kommifornia
Posts: 3,454
Liked 341 Times on 265 Posts
Likes Given: 51


Dude, between those two, it doesn't even make sense to get the lower option. Look closely at the barrels. They are both lw profile under the handguards where most of the bending or flexing will occur. Then it gets wide again, in front of the gas block. Sure a little weight in front will help tame muzzle rise a bit, but it also make the gun heavier in the worst possible place, making it harder to swing, steady and carry.

I think another difference is that the gas block on the pencil profile is .625, and the other is .750. It doesn't matter, short of a jack hammer you not getting a BCM pinned gas block off.

Get the pencil profile. You won't regret it.
Assumption is the mother of all ****ups.
Know what you know, Know what you don't know. -Paul Pedzolt
"Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul
AgentTikki is offline  
Reply With Quote
Old 04-12-2013, 05:50 AM   #3
Feedback Score: 0 reviews
Quentin's Avatar
Join Date: Apr 2010
Location: Idaho
Posts: 7,007
Liked 1312 Times on 899 Posts
Likes Given: 1407


I agree with AT, in fact I have BCM's LW midlength upper and love it. Never been sorry I went with their pencil barrel.
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
US Army 1966-69, VFW Life Member, Retired Geek
Quentin is offline  
Reply With Quote

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
$389.95 DPMS Uppers & RRA Uppers Available NOW! JoeBobOutfitters Sponsor Display 0 07-18-2012 05:08 AM
Need lightweight Flat Tire General Rifle Discussion 6 05-09-2012 10:15 PM
Lightweight .45 PeteZaHut General Handgun Discussion 9 03-17-2012 03:18 AM
Need do it all .357 Lightweight revolver guiri Revolver Handguns 24 03-19-2009 08:21 AM
Lightweight .44? bogey Revolver Handguns 15 10-25-2008 09:13 PM

Newest Threads