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COLT M4A1 Gun Stats


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Designed specifically for lightweight mobility, speed of target acquisition, and potent firepower capability - the Colt M4A1 Carbine delivers for our military service members, now it can deliver for you too! The same exact rifle that is issued to US service members with "Property of US Govt M4A1" markings, in a semi-auto configuration. Featuring a true 14.5" SOCOM barrel with an A2 flash hider that is pinned and welded to achieve a 16.1" length. Knights Armament RAS quad rail, ambidextrous safety selector, Matech back up iron sight, and an H2 buffer.

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COLT M4A1 Specs

1 Brand

2 Category

Technical Data

Barrel Length

14.5 Inches


30 + 1




102.4 oz

COLT M4A1 Features

The M4A1 is a select-fire carbine capable of firing in semi- or full-automatic and uses a 14.5 inch barrel with a slightly heavier contour than the typical M4 profile barrels.  The M4A1 operates on an internal piston system identical to other M4/M16 rifles and uses a carbine-length gas tube.  The M4A1 also uses an A3 style flat-top upper receiver that can be topped with iron sights or optics.

COLT M4A1 Ballistics

COLT M4A1 Capacity

The Colt M4A1 is chambered in 5.56x45mmNATO (.223 Remington) and feeds from all AR15 pattern magazines.  While its standard 30 round magazines make up almost 95% of AR15 magazines in existence, it can also feed 5, 10, 20, 40, 60 and 100 round box magazines as well as 60 and 100 round drum magazines.

Measuring 29.75 to 33 inches depending on stock placement with an unloaded weight of 6.4 pounds, the M4A1 is the lightest standard infantry rifle ever fielded to American troops.  The short overall length offers better maneuvering through close-quarter environments while its 14.5 inch barrel still offers enough muzzle velocity to reach targets out to 500 meters.

COLT M4A1 Mobility


COLT M4A1 Ergonomics

The M4A1 as used by the US Military can be found with different stocks, grips, handguards and optics depending on factors such as the unit the rifle belongs to, upgrades provided by the soldier carrying it, upgrades completed by the company armorer, and more.  The safety, magazine release and bolt release are all located according to the standard M4/M16 loadout.

COLT M4A1 Fit & Finish

The M4A1 can be found with many different components thanks to the modularity of the M16 platform.  When properly maintained, these carbines can ensure incredible reliability which has led to an impressive career lasting well over 30 years.  Most M4A1 rifles have considerable wear along all surfaces, though their parts can easily be replaced on an as-needed basis.

Fit and Finish

How much is a COLT M4A1 worth?

In 2024 a new or used COLT M4A1 value varies depending on supply and demand. In the last 12 months there is great demand for a COLT M4A1 and most rifles. The Price for a COLT M4A1 has increased in cost by $0.00 in 2024 compared to 2023.

Estimated New and Used Values for a COLT M4A1 Values are based on a basic model with no options or colors.

Condition Trade-In Private Party Dealer
New In box $1,102.32 $1,441.49 $1,695.87
Excellent $1,017.52 $1,356.70 $1,526.28
Very Good $932.73 $1,356.70 $1,526.28
Good $847.94 $1,271.90 $1,441.49
Fair $593.55 $1,102.32 $1,356.70
Poor $423.97 $847.94 N/A

Gun Value Conditions explained:

New in box - 100% condition in unopened box. Excellent - 95%+ condition with or without box.

Very Good - 90% - 95% condition (all parts/finish should be original).

Good - 80-90% condition (all parts/finish should be original).

Fair - 30% - 80% condition, parts, and finish may or may not be original. Must function properly and shoot.

Poor - under 30% condition. Firearm has severe wear and tear, does not function, or is damaged.

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