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AR15 Barrel Specs >
AR15 Barrel Specs.
 Apr 15, 2002 --

AR15 Barrel Specifications Find approx. barrel weights, lengths, and velocities from respective barrels here at my site, courtesy of the folks at BM. I think many browsers will find it useful. Velocities & Energy Figures for the AR15 are also included. Below is a table displaying velocity and energy figures for differing barrel lengths for the AR15. Below the table you'll find approximate barrel weights for various profiles.


Barrel Length

Velocity


(Win.55g)

 Velocity (Mil. 62g)

Energy (Win. 55g)


Ft. lbs.

Energy (Mil. 62g)


Ft. lbs.
10" 2739 2627 918 950
11 1/2" 2872 2738 1007 1032
14 1/2" 3064 2907 1146 1163
16" 3132 2989 1198 1230
20" 3259 3095 1297 1318
24" 3315 3158 1342 1373
26" 3391 3231 1404 1437

 


 


Barrel Weights (in pounds) FYI, here are the comparative barrel weights of standard profiles.


10"- Heavy Barrel-2.0/ Fluted-1.9


 11.5"- Heavy Barrel-2.2/ Fluted-2.0


11.5x5.5"- Heavy Barrel-2.6/ Fluted-2.5


 14.5"- Heavy Barrel-2.5/ Fluted-2.2


14AK"- Heavy Barrel-2.7/ Fluted-2.4


14VO"- Heavy Barrel-2.7/ Fluted-2.4


14A3TB- Heavy barrel-2.7/ Fluted-2.4


14A3FS- Heavy Barrel-2.7/ Fluted-2.4


 16"- Heavy Barrel-2.7/ Fluted-2.3


16"Dissipator- Heavy Barrel-3.0/ Fluted-2.6


20"- Heavy Barrel-3.5/ Fluted-3.0 24"- Heavy Barrel-3.9/ Fluted-3.1


26"- Heavy Barrel-4.0/ Fluted-3.2


 


Barrel Weights for Military Style Barrels (in pounds)


XM177-1.7 M4-2.0


M4AK-2.2


M4VO-2.2


M4A3TB-2.2


M4A3FS-2.2


M4Dissy-2.3


20A2-2.5