Largest Inside Diameter Handguard for AR 10?

Nov 6, 2013
470
123
43
Southern, IN
#1
I am looking for the largest Internal Diameter freefloat handguard that I can get for a build using an AR 10/DPMS receiver?

I would prefer something that allows the modular attachment of rails (not looking for just a round tube).

I want to make sure that I have plenty of clearance between the barrel components and the handguard to prevent any possible contact when the barrel whips. The last AR10 that I had would string really bad as the barrel heated, and it looks like it was due to the gas block hitting the handguard as the barrel moved more & more with heating.

I would love to put a Seekins Precision SP3R on it, but they do not make a version for the DPMS AR 10 receiver.

Any help would be greatly appreciated. Thanks!
 

bobke

Sergeant
Sep 17, 2010
663
42
28
66
Tx Hill Country
#2
Apex Machine a possibility. Have three, allow more than adequate clearance for SLR GB’s on .850/.936 GB shoulders, lots of accessory pic rail options, bolt on full length top rail, hi/lo options. They are round, textured for good grip. Solid mount platform, though not a Seekins or E1 Aero.
 
Jan 15, 2005
6,369
921
113
VA
#4
Might be worth it to swap out the receiver to one that uses AR15 style handguards so you can use the Seekins rails. The round one is huge, I have one on a 300BLK and it clears a 1.5” diameter can by quite a bit.
 
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