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      Before You Order(Page)

      At MontanaAR15.com we understand that owning a firearm is an American right as well as a responsibility. Before you buy ammunition online or more from us, make sure you review the information below...

      Returns(Page)

      RETURN POLICY: MontanaAR15 does NOT accept returns on ammunition, firearms, or lower receivers due to safety considerations and US DOT regulations. No returns on CLEARANCE/SALE items. It...

      Bolt Carrier Group - BCG(Post)

      The Bolt Carrier Group in your typical AR15 is where is all complex moving parts operate. The BCG holds the bolt (7) and it's associated parts, the firing pin (2), the cam pin(3), the gas key (6) and

      Purchasing Firearms(Page)

      Part of what makes MontanaAR15.com a favorite for buying AR-15 Lowers & Complete Carbine/Rifles and Pistols online and more is our straight forward approach to this simple process. Please read...

      Eugene Stoner (Direct Gas Impingement) and Gas Piston(Post)

      You guessed it. We are talking about an AR15 rifle (or an AR10 or AR-15). Direct Gas Impingement means that gas from a fired cartridge is send directly into the bolt carrier group (BCG). This gas push

      Standard ("High") Capacity Magazines(Page)

      At MontanaAR15, we work very hard to stay on top of the constantly-changing guidelines for firearms - it's part of what makes us the best place to buy ammunition online, invest in AR parts and...

      Commercial or Mil Spec?(Post)

      Of all the parts of an AR15, the one part that is not standardized is the buttstock buffer tube.At first you would think the difference is just the diameter of the tube itself but that's just the firs

      Newsletter(Page)

      Click -->  Subscribe to our Newsletter! PLEASE KNOW:  We do not abuse our newsletter subscribers.

      I want a more accurate AR15. Or why can't I shoot sub MOA groups?(Post)

      Well don't all want that! First let's address the obvious: Is your rifle capable of shooting sub MOA and what the heck is MOA? MOA is Minute of Angle (1/60 or a degree) or in math terms amounts to a c

      Shipping(Page)

      General Shipping Info: We work hard to get all orders processed and shipped in a timely manner.  We will provide the UPS tracking number by e-mail once the order has been processed and...

      Terms & Conditions(Page)

      Terms & Conditions in regard to purchasing from MontanaAR15.com.  You have read, acknowledged, and agreed to the following: You are not prohibited by law or any other regulation to receive,...

      Contact Us(Page)

      AMMO questions, AR-15 questions, ask away.  We've been selling ammo since 2009 and AR parts since 2010.  Best is to email us at sales@montanaar15.com

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