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9/22/2017 12:11:25 AM
Posted: 10/7/2005 6:28:43 PM EDT
I just bought a pair of KAC M4 RAS handguards for my AR-15 and the top doesent seem to sit all the way down. Is the M4 more oval or am I just putting this amazingly simple looking accessory on wrong?

Link Posted: 10/7/2005 7:07:34 PM EDT
more oval
Link Posted: 10/7/2005 8:01:08 PM EDT

Do you mean the difference between KAC and COLT M4 handguards?
Link Posted: 10/7/2005 8:18:49 PM EDT
The difference between AR-15 handguards and those of an M4.
Link Posted: 10/7/2005 8:22:11 PM EDT

Originally Posted By BJohnson383:
The difference between AR-15 handguards and those of an M4.

Gregory_K was right--the M4 handguards are oval shaped.
Link Posted: 10/7/2005 10:41:33 PM EDT
[Last Edit: 10/7/2005 10:45:00 PM EDT by eye_spy]
Since I could not understand if you wanted a comparison between a regular handguard, an M4 handguard or a Knights RAS .... let me just state the following:

AR15 handguards or the regular carbine handguards (CAR) are much narrower compared to an M4 guard. The M4's are bulkier, more oval and have (most of the time) double heat shields.

The RAS may be more in the dimensions of a regular AR15 / CAR handguard. But when you add on its panels, they do become "thicker".


[ETA: BTW what exactly was the problem with the upper part of your RAS? Were you refering to the RAS II or a RIS]
Link Posted: 10/7/2005 11:17:24 PM EDT
M4 handgaurds are larger on the outside but they are the same dimensions underneath and M4 and AR handguards can easily be swapped on teh same rifle. If you KAC handguards don't fit then either you're not installing them correctly or there's something wrong with your barrel.
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