Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Customer Reviews
Helpful Positive Review
Game Changer and 2nd Review and Stoked. by Beans, Verified Owner, January 2, 2023
So far and So good. I’m impressed and more it seems as I use the magazine release with other digits. The home defense pistols got the upgrade as well. Glock 17 gN2 and Glock 19 gN3. The extension protrudes more than the OEM release and less than a Gh...
Read More...
1/1 found this helpful
Most Recent Reviews
A must have for Glock owners by Trooper17, April 6, 2024
Being a left handed sucks when your mag release is designed for right hands only. So when Rainer arms designed the Mars, which makes it an ambidextrous mag release makes releasing your handgun much easier for left-handed shooters or for people who ju...
Read More...
Most Recent Reviews
perfect solution by Tom, Verified Owner, February 18, 2024
Great product. Went in my Gen3 Glock 17. Fit and works great. Wonderful that it is compatible with right and left handed shooters.
Most Recent Reviews
Very good product for a left handed user by Foggdawg6, March 16, 2023
Very good product for a left handed user. Process to order very easy. Easy to release left handed or right handed. Easy to instsall. Easy to use. Left handed user will love. Shipped fast. Happy about purchase.
Most Recent Reviews
Best Magazine Release to date. by Beans, Verified Owner, December 17, 2022
Perfect machining-Perfect finish-flawless operation. Holds the mag solidly and drops the mag the freely from both sides of the release. I only had to file a tiny bit from the holster on the right side. It works great although I haven’t tried shooting...
Read More...
Read All 5 Reviews
Gun Make: Glock Model Generation: 4 , 5 Color: Black Finish: Anodized Fabric/Material: 6061-T6 Aircraft Grade Aluminum Condition: New

Code: 4ZM-EMR-CPO12-RA-MARS-G4-5-BLK

MPN: RA-MARS-G4-5-BLK

UPC: 744985350728

Product No Longer Available

Product Info for Rainier Arms MARS Magazine Advanced Release System for Glock

The Rainier Arms MARS (Magazine Advanced Release System) for Glock, designed by Battleline Industries, is a drop in release which is compatible with all GEN 1 - 3 Glock pistols in calibers 9mm, 40 S&W, and .357 SIG. The MARS is made of 6061-T6 aircraft grade aluminum, with a Type III Class 2 MIL-SPEC hard coat anodizing finish and stainless steel hardware for maximum corrosion resistance and durability. The MARS control surfaces are slightly extended and feature an aggressive texture for a faster reload and positive control.image

The MARS is COMPLETELY ambidextrous, giving both left and right hand shooters as well as competitors, a tactical advantage with the ability to release the magazine using the index finger from either side. The MARS is a force multiplier in a combative situation, enabling the left and right hand shooter better options to manipulate magazine changes with speed and efficiency without disturbing the proper firing grip and allowing for more accurate follow up shots.

Package Contents:

  • Rainier Arms MARS Magazine Advanced Release System for Glock

Related Products to Rainier Arms MARS Magazine Advanced Release System for Glock

Rainier Arms MARS Magazine Advanced Release System for Glock Unavailable & Discontinued Models

List of Unorderable Models

  • Rainier Arms MARS Magazine Advanced Release System for Glock Gen 4 & 5, Black, Small, RA-MARS-G4-5-BLK , MPN: RA-MARS-G4-5-BLK , UPC: 744985350728 , Code: 4ZM-EMR-CPO12-RA-MARS-G4-5-BLK
  • Rainier Arms MARS Magazine Advanced Release System for Glock Gen 1-3, Black, Small, RA-MARS-G3-BLK , MPN: RA-MARS-G3-BLK , UPC: 744985350698 , Code: 4ZM-EMR-CPO12-RA-MARS-G3-BLK
  • Rainier Arms MARS Magazine Advanced Release System for Glock Gen 1-3, Gold, Small, RA-MARS-G3-GLD , MPN: RA-MARS-G3-GLD , UPC: 744985350704 , Code: 4ZM-EMR-CPO12-RA-MARS-G3-GLD
  • Rainier Arms MARS Magazine Advanced Release System for Glock Gen 4 & 5, Red, Small, RA-MARS-G4-5-RED , MPN: RA-MARS-G4-5-RED , UPC: 744985350742 , Code: 4ZM-EMR-CPO12-RA-MARS-G4-5-RED
  • Rainier Arms MARS Magazine Advanced Release System for Glock Gen 4 & 5, Gold, Small, RA-MARS-G4-5-GLD , MPN: RA-MARS-G4-5-GLD , UPC: 744985350735 , Code: 4ZM-EMR-CPO12-RA-MARS-G4-5-GLD
  • Rainier Arms MARS Magazine Advanced Release System for Glock Gen 1-3, Red, Small, RA-MARS-G3-RED , MPN: RA-MARS-G3-RED , UPC: 744985350711 , Code: 4ZM-EMR-CPO12-RA-MARS-G3-RED
Compare (0)