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brandenm
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Post subject: ACOG Inquiry, M4 vs M16A4  Posted: Fri Oct 09, 2009 4:55 pm |
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Joined: Mon May 04, 2009 6:37 pm
Posts: 72
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Jesse wrote:
What is the difference in an ACOG for a M4 vs. a M16A4, and can a M4 ACOG be used with a M16A4 and be accurate at 500M?
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ArmyProperty.com Team
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brandenm
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Post subject: Re: ACOG Inquiry, M4 vs M16A4 Posted: Fri Oct 09, 2009 4:56 pm |
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Joined: Mon May 04, 2009 6:37 pm
Posts: 72
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Bill writes:
Thank you for your inquiry. The difference between an ACOG designed for the M16A4 (20” barrel) versus an ACOG designed for the M4 (14.5” barrel) is in the bullet drop compensator (BDC) portion of the reticle. The M16A4 BDC is calibrated for M855 with a muzzle velocity of 3100 fps. The M4 BDC is calibrated for 2900 fps. The one combination that can cause unacceptable accuracy is putting an ACOG designed for a 20” barrel on a weapon with a 14.5” barrel.
The USMC TA31RCO-A4 is calibrated for a 20” barrel.
The USMC TA31RCO-M4 and Army TA31RCO-M150 are calibrated for a 14.5” barrel.
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ArmyProperty.com Team
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undefeated
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Post subject: Re: ACOG Inquiry, M4 vs M16A4 Posted: Thu Mar 11, 2010 11:01 am |
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Joined: Thu Mar 11, 2010 10:59 am
Posts: 1
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can i ask about rifles? what are the best rifles used for wars? i know there are lot of them but what is the best?
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ASP expandable batons
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