Upper receiver question
You are Unregistered, please register to use all of the features of FirearmsTalk.com!    

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

Upper receiver question

LinkBack Thread Tools Display Modes
Old 11-21-2013, 09:29 AM   #1
Feedback Score: 0 reviews
sensei9's Avatar
Join Date: Sep 2013
Location: Aberdeen,WA
Posts: 67
Liked 11 Times on 10 Posts

Default Upper receiver question

OK, while I used to build and repair AR15s, all we had back then was the A1 and the A2. So, can you put mount an A3 upper receiver with barrel that has the M4 feed ramps? Will this work or will the lack of feed ramps on the upper cause feeding problems? Like I said, all I've ever built were the A1 and A2 rifles and carbines.
I would be thankful for any help here. I have looked and the other theards and haven't seen anything about it.

sensei9 is offline  
Reply With Quote

Join FirearmsTalk.com 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 FirearmsTalk.com Today! - Click Here

Old 11-21-2013, 12:04 PM   #2
Feedback Score: 0 reviews
Partridge02's Avatar
Join Date: Dec 2012
Posts: 45
Liked 3 Times on 3 Posts


I know someone will correct me if I'm wrong but I do believe if your barrel has the m4 feed ramps but your upper receiver lacks them you are good to go. It's the opposite configuration, standard receiver and M4 cut barrel that creates a gap that the point of your bullet can snag.
Partridge02 is offline  
Reply With Quote
Old 11-21-2013, 02:19 PM   #3
Feedback Score: 0 reviews
Join Date: Nov 2013
Location: N.E. Washington
Posts: 276
Liked 55 Times on 46 Posts
Likes Given: 9


Take out your Dremel and carefully cut the A1 receiver to match the barrel.
Ibmikey is offline  
Reply With Quote

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
Upper Receiver for AR-15, .458 caliber Fates_Enemy AR-15 Discussion 31 06-18-2012 08:25 AM
7.62 x 39 AR Upper receiver Cattledog AR-15 Discussion 18 01-17-2012 01:12 AM
Upper Receiver/BCG package devildogcg AR-15 Discussion 7 09-10-2011 07:06 PM
AB-01 9MM Upper Receiver $49.99 Cope's Distributing Sponsor Display 0 08-24-2011 03:46 PM
Upper receiver marks EW1066 AR-15 Discussion 4 07-15-2010 05:24 AM

Newest Threads