Free float handguards

[sinister]

... both the LaRue and BCM have a strong barrel nut/handguard attachment system. I am interested in that question. Is one better than the other? But a inherently strong attachment point is desirable.

They both work. The Larue can be a pain to install (as noted above), depending on your vice blocks (or reaction rod).

[Patrin]

Sinister, re C4 rails, have you encountered personally or by relation a rail of this type failing?

I have one, and it’s been solid via long Montana hikes, hunting and a steady training schedule on a flat range.

No combat rigors to test albeit...

[sinister]

I've never heard of one failing, i.e. bending, cracking, etc.

The benefit of the Centurion is it uses a standard barrel nut. Not the longest (to help minimize flex at the rail / tube root) mounting contact area, and would tend (in my own analysis) to get pretty warm in any kind of sustained pie fight, I would think it does its job. The quad-rail style keeps it pretty rigid.

[Patrin]

Always enjoy reading your feedback, thank you, Sinister.

[lowprone]

I thought Knight's made a 20" floating hand guard !

[Rabshell]

Will the BCM MCMR handrail work with a Superlative Arms clamp on AGB? I can’t get a reply from SA on what rails are compatible.