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Posted: 10/4/2008 10:22:22 AM EDT
| has anyone had issues getting a ras to slip into the front handguard cap? |
2 people.   I usually take the cap screw out of the rail and keep the locking arm pushed down/out of the way with an allen wrench or something similar. I also install it with the muzzle pointed skyward. Easier for me to "three hand" it. Once everything is lined up and the locking arm is in the right spot, I reinsert the (loctited) cap screw and tighten to spec. *The barrel diameter is a known issue - but I forget which one. You have an HBAR perhaps? |
ah. got it. thanks for keeping me sane |
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THE KAC RAS WAS DESIGNED FOR THE M4 CONTOUR BARREL, WHICH IS 0.835" - 0.855" JUST AFT OF THE FRONT SIGHT TOWER. IF YOUR BARREL IS NOT OF THIS CONTOUR AT THIS POINT, THE KAC M4 RAS WILL NOT FIT. THE M4 KAC RIS AS USED BY SOCOM WILL FIT ANY CONTOUR BARREL. GOOD SHOOTING, WES GRANT MSTN.BIZ YOUR FRIENDLY KAC DEALER |
+1 I have a RIS on my 11.5-inch HBAR for just this reason while the RAS fits the M4 Carbine just fine. The rifle length RAS will fit an HBAR just fine but it does not fit a CMP profile barrel but anybody that that heavy of a barrel likely wants a float tube anyways.. |
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