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Posted: 6/20/2014 1:36:53 PM EDT
This is the rail in question- http://algdefense.com/10-ergonomic-modular-rail-black-178.html


I am trying to find a clamp on, low profile gas block for a .750" barrel that will fit underneath that forearm and still let it free-float.


The ID of the tube is 1.46", and it looks like the usual issue with clamp on gas blocks is the position of the clamping screws.

Will this http://www.vltor.com/product/gb-clamp-on-set-screw/ gas block fit under the ALG rail? It looks like it should clear when adding up all the dimensions, but I don't want to order anything without actually knowing what fits and what doesn't.
Link Posted: 6/20/2014 1:49:53 PM EDT
Vltor will work, but a YHM lp gb is about 1/2 the price and should work as well (full disclosure - I have both)...
Link Posted: 6/20/2014 3:03:10 PM EDT
I have nothing against a less expensive part.


Do you have your YHM block under a handguard?
Link Posted: 6/20/2014 3:22:48 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By OttoTheIllustrious:
I have nothing against a less expensive part.


Do you have your YHM block under a handguard?
View Quote
The YHM is under a Fortis...
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