These magazines were designed for professional shooters and law enforcement personnel whose lives depend on a perfect shot every time. Expertly machined for exceptional quality and guaranteed to feed and function for every shot. ProMag magazines include a lifetime guarantee, if you ever have a problem with their magazines; simply return them to ProMag for replacement. When you need a cost effective aftermarket replacement mag that you know you can count on, you need a ProMag!
This magazine is made from Technapolymer with an anti tilt roller follower and anti fatigue chrome silicon spring for flawless operation. The anti tilt roller follower will provide reliable feeding and the anti fatigue spring will work even after being preloaded and stored for up to 6 years!
Specifications and Features:
ProMag Rollermag AR-15 Magazine RM-40
5.56 NATO/.223 Remington
40 Rounds
Smooth Feeding
Anti Tilt Roller Follower
Anti Fatigue Chrome Silicon Spring
Technapolymer Magazine Body
ProMag Lifetime Warranty
Black
This magazine is made from Technapolymer with an anti tilt roller follower and anti fatigue chrome silicon spring for flawless operation. The anti tilt roller follower will provide reliable feeding and the anti fatigue spring will work even after being preloaded and stored for up to 6 years!
Specifications and Features:
ProMag Rollermag AR-15 Magazine RM-40
5.56 NATO/.223 Remington
40 Rounds
Smooth Feeding
Anti Tilt Roller Follower
Anti Fatigue Chrome Silicon Spring
Technapolymer Magazine Body
ProMag Lifetime Warranty
Black
Reliable
Simply Perfect!
March 2, 2024
40 round mags.
So far I have only loaded the mags. Until I get to my Daughter's ranch I won't have an opportunity to see how they feed.
May 1, 2022
Wouldn't feed rounds when filled to capacity.
When fully loaded, the spring was not strong enough to cycle the rounds. Did no start working freely until about 75% full. I do not recommend these.
April 5, 2022
Great magizines!
February 4, 2022
I would probably buy this again
Not a bad magazine but occasionally has feeding issues.
June 29, 2018
I would buy this again
Worked like a charm ... no issues!
May 17, 2018
It work will
It work at as good as 30rd Mags
October 22, 2017
Ordered two mags and only
Ordered two mags and only received one. I called customer service the next day when they opened and within 2 business days I had my other mag on my doorstep. Great customer service, prompt shipping will be ordering more from them. Not to mention the mags seem like they will last a good while.
March 7, 2017
Will this mag work on a mossberg mmr AR-15 5.56mm?
Answer:
Yes it will
Can I put in a follow in this to use in my 450 bushmaster?
Answer:
No you cannot.