Confirm Action

Are you sure you wish to do this?

Confirm Cancel
Member Login
Site Notices
9/22/2017 12:11:25 AM
Posted: 10/9/2002 1:23:16 PM EDT
Could someone please tell me: what is the diameter of the barrel just behind the front site, of a post-ban new RRA M4 Entry Tactical? The chrome-moly barrel, not the chrome-lined new ones. Thanks.

I am assuming the Knights RAS will not fit this barrel correct? Only the RIS and the RAS2 right?
Link Posted: 10/9/2002 2:57:59 PM EDT
The RRA M4 Entry Tactical uses an M4 type barrel like the 2001 LEPG, which is similar to the Bushy/colt/etc. The RAS should fit fine.
Link Posted: 10/9/2002 7:49:15 PM EDT
As I recall, the 2001 LEGP Rock River M4 barrels were not machined to the same diameter as regular M4 barrels. Unless mistaken, they were a little thicker. I have been asking around to see if this is still the case, but with no luck. Can anyone here with a Rock River M4 barrel and some gauges read us the specs?
Link Posted: 10/9/2002 9:15:12 PM EDT
I just measured my RRA Post Ban M-4 with fake FS and the thickest area just behind the front sight was .850. That handguard removal tool was the best 18 bucks I ever spent.
Link Posted: 10/9/2002 9:23:26 PM EDT
Now that I finally got my damn handguards off.

I have 2 and both measured .844"

what handguard removal tool?
Link Posted: 10/9/2002 9:30:21 PM EDT
It goes up in tha mag well and pulls down the delta ring and makes taking the handguards off a snap, I cant remember the place where I go it from but they advertised on in the EE.
Link Posted: 10/9/2002 9:34:35 PM EDT
k9dpd, thanks for the tip. I'll have to look for one when I get some feeling back in my fingers.
Link Posted: 10/9/2002 9:40:44 PM EDT

Originally Posted By doggie:
Now that I finally got my damn handguards off.

I have 2 and both measured .844"

what handguard removal tool?

I believe this was the guy who had the tool, but his site isn't listing it right now. He had a few demo pics on his site. Don't know what the problem with his site is. www.dcfonline.com
Link Posted: 10/9/2002 9:54:05 PM EDT
Cool, I'll check there tomorrow and see if his sight is up.
Link Posted: 10/9/2002 10:02:59 PM EDT
yea thats where I got it from.
Link Posted: 10/10/2002 8:43:47 AM EDT
You can get the handguard tool from Brownells, www.brownells.com, the item number is 100-000-438.
Top Top