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Posted: 5/18/2005 4:41:50 PM EDT
[Last Edit: 5/18/2005 4:56:39 PM EDT by prone]
Hello, I want to buy a flat top reciever but don't know if I need the M4 cut. I have a Bushy M4 A2. Do I need the M4 cut receiver, how do I tell?
Link Posted: 5/18/2005 5:35:13 PM EDT

Originally Posted By prone:
Hello, I want to buy a flat top reciever but don't know if I need the M4 cut. I have a Bushy M4 A2. Do I need the M4 cut receiver, how do I tell?



No. BM does not use M4 barrel extentions.
Link Posted: 5/18/2005 5:45:13 PM EDT
Thanks redbone!!!!
Link Posted: 5/18/2005 6:21:09 PM EDT
I thought people had reported that a few had surfaced.....

Post a picture, and we can give you an honest answer.
Link Posted: 5/18/2005 7:48:30 PM EDT
open it up, pull the bolt, look inside to see the barrel extention, if the right and left grooves extend into the reciever then you will need an M4 reciever as in the picture below.

If the feed ramps do not extend into the reciever then you will need a regular reciever, if they do not extend then the reciever will be flush up to the barrel extention


M4 Feed ramps

Link Posted: 5/18/2005 11:51:26 PM EDT

Originally Posted By YardDogOne:
open it up, pull the bolt, look inside to see the barrel extention, if the right and left grooves extend into the reciever then you will need an M4 reciever as in the picture below.

If the feed ramps do not extend into the reciever then you will need a regular reciever, if they do not extend then the reciever will be flush up to the barrel extention


M4 Feed ramps

pic11.picturetrail.com/VOL366/498052/5478468/80208307.jpg



More reliable or not, they look badass.

IIRC LMT and Colt are the only ones doing the M4 ramps on their barrels no??

Gundraw
Link Posted: 5/19/2005 3:38:52 AM EDT
www.ar15.com/forums/topic.html?b=3&f=118&t=191733

When all else fails the TACKED threads can be big help, IF you don't forget their there.....

Mike
Link Posted: 5/19/2005 5:38:05 AM EDT

Originally Posted By GunDraw:

Originally Posted By YardDogOne:
open it up, pull the bolt, look inside to see the barrel extention, if the right and left grooves extend into the reciever then you will need an M4 reciever as in the picture below.

If the feed ramps do not extend into the reciever then you will need a regular reciever, if they do not extend then the reciever will be flush up to the barrel extention


M4 Feed ramps

pic11.picturetrail.com/VOL366/498052/5478468/80208307.jpg



More reliable or not, they look badass.

IIRC LMT and Colt are the only ones doing the M4 ramps on their barrels no??

Gundraw



Armalite does as well.
Link Posted: 5/19/2005 1:46:12 PM EDT
Ahh, I see. Mine is the none M4. Thanks gentelman.
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