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3/26/2009 3:32:11 AM EDT
am building a "as close as I can" replica of the Army's SDM-R. I ordered a 20" douglas barrel with flutes. The barrel maker (CLE) siad it was a rifle length gas system. I will put a sight tower gas block.

Question - what size hand guard? I realize I can put a rifle lenght on, but most of the pics I see have mid-lenght (I think).

Thanks
3/26/2009 4:08:58 AM EDT
[#1]
Found a nice thread titled "show us your SDM-R". It appears that they all were rifle lenght handguards.

I am still a newbie so, let me know if I am clueless on handguard lenghts.
3/26/2009 5:04:04 PM EDT
[#2]
How much extra weight do you add going from a 10" rail to 13" on a 16" barrel - will it change the handling dramatically?
3/26/2009 7:16:47 PM EDT
[#3]
Ears open...I'm curious about the Troy 13.8 inch rail on a 16" barrel myself??
3/26/2009 8:52:02 PM EDT
[#4]
Quoted:
am building a "as close as I can" replica of the Army's SDM-R. I ordered a 20" douglas barrel with flutes. The barrel maker (CLE) siad it was a rifle length gas system. I will put a sight tower gas block.

Question - what size hand guard? I realize I can put a rifle lenght on, but most of the pics I see have mid-lenght (I think).

Thanks


Mid length on a rifle length gas system would leave several inches of the gas tube exposed.  I doubt that's something the Army would do.
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