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About Rock Island M15 - 4.25"

The Rock Island M15 was developed by the U.S. Army's Rock Island Arsenal to replace the aging Colt 1903 and 1908 pocket Hammerless pistols. The Rock Island M15 is quite similar to the Colt Commander and is operationally similar to the M1911A1. Formally adopted in 1972, it is no longer produced but remains in service with some long-career officers. It is a semi-automatic single stack pistol and has a frame made of parkerized steel. The Rock Island M15 has a shorter barrel which is reported to have a greater muzzle blast and it relies on the use of the .45 ACP cartridge. Its magazine is single stack and it can store up to 7 rounds of ammo.

Types of Rock Island M15 - 4.25" holsters

Rock Island M15 - 4.25" IWB Holsters

Crafted for a seamless fit, the Rock Island M15 - 4.25" IWB holster (inside-the-waistband) provides a comfortable and secure carrying experience for your Rock Island M15 - 4.25". Moreover, it’s one of the best Rock Island M15 - 4.25" concealed carry holster choices. 

Rock Island M15 - 4.25" OWB Holsters

The Rock Island M15 - 4.25" OWB holster (outside-the-waistband) is tailor-made to offer a reliable and easily accessible carrying option for your Rock Island M15 - 4.25". Elevate your carry experience with our Rock Island M15 - 4.25" OWB holster, designed for an ideal ride height and easy concealment thanks to its slim profile. 

Rock Island M15 - 4.25" Shoulder Holsters

Choose our Rock Island M15 - 4.25" shoulder holster for an unmatched blend of comfort and efficiency, specifically designed for your Rock Island M15 - 4.25". These Rock Island M15 - 4.25" shoulder holsters boast a custom fit, enhanced by a high-retention leather strap, ensuring easy access to your firearm.

Gun Facts

Barrel length: 4.25
Caliber: 45
Stack: 1
Width: 1.4
Height: 5.5
Length: 7.9

Best Gun Holster Accessories

Choose the right accessories below that will enhance your carry. Don't forget that a proper magazine pouch, a belt or a concealed carry bag are always good choices.


Get yourself a custom mag pouch or speedloader pouch. Becasue there is never "enough ammo" right?

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A solid and stable gun belt is what you need to prevent your holster and the rest of your EDC from sagging.

See Gun Belts

care kits

Don't forget to get yourself a handy kit that contains everything you need to make sure your holster will last you a lifetime.

See Care Kits

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