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Mag AR-15 5.56 NATO 20 Round Thermold Black Zytel Nylon Construction
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Mag AR-15 5.56 NATO 20 Round Thermold Black Zytel Nylon Construction
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Manufacturer: Thermold THEA20
Item: MAG-049
UPC: 897180001008

Tough Zytel nylon construction makes Thermold magazines incredibly resilient, and the low profile makes it perfect for shooting prone or off of a bench. Works with any weapon that accepts standard AR-15/M16 magazines.

30 Round (MAG-104)
20 Round (MAG-049)
10 Round (MAG-100)


Thermold Magazines started in the 1960's as a molded plastics injection manufacturer that served the automotive industry. It's founder, William Howard, was well known in his hometown of Wilson, N.C. as an innovative thinker who held many patents. Mr. Howard was also a big game hunter for whom making firearms more reliable was both a passion and a necessity.

Using a nylon resin called Zytel, developed by DuPont after World War II to replace metal in large-scale manufacturing, Thermold began producing weapons magazines that resisted heat and corrosion, and functioned with extreme reliability. Thermold magazines rapidly became the product of choice among military personnel, law enforcement officers and sport shooters around the world.

All of our products are proudly made in the United States in North carolina. Today, many of the firearm industry's largest and most prestigious distributors are once again able to sell the trusted line of Thermold magazines and weapons products.

"Time-tested quality and reliability. That's Thermold."
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Average Customer Rating: 4.2 Rating (14 Customer Reviews)  Write a Review!
Page 1 of 3 (14 Reviews)
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3.0 Rating OK - 1/7/2013Mag AR-15 5.56 NATO 20 Round Thermold Black Zytel Nylon Construction3.0000
Reviewer: Tactiguy
Wouldn't snap in to my Bushmaster, but worked fine in my Stag. OK magazines and they work well - just not in my Bushmaster. Don't expect PMAGs - these aren't them.
4.0 Rating Thermold 20s - 5/27/2012Mag AR-15 5.56 NATO 20 Round Thermold Black Zytel Nylon Construction4.0000
Reviewer: j/k
I've accumulated about 8 of these magazines for my DPMS Oracle. So far, they work better than the OEM aluminum mags. The aluminum 30 rounders tend to stick in the magwell upon entry and removal, whereas these go in flawlessly. Operation of round feeding so far has been flawless. But I have one mag where the top round looks like it might pop out at any moment. Follower spring seems very sensitive to being loaded for extended periods and seems to lose rigidity, whereas the aluminum mags do not. For the price, it can't be beat and for me has significantly reduced reloading times, because the mag offers no resistance when being inserted, compared to aluminum mags. As far as durability, I've yet to really test that in extreme conditions, but I've fired about 1,200 rounds through these with no issues. Great magazines so far.
4.0 Rating Doesn't lock back - 5/17/2012Mag AR-15 5.56 NATO 20 Round Thermold Black Zytel Nylon Construction4.0000
Reviewer: Andrew
For the price, these are great spares. Definitely not a primary use mag. As other reviews stated, it doesn't lock the bolt back. Other than that, it seems to be a good mag.
4.0 Rating Works well, great price - 5/17/2012Mag AR-15 5.56 NATO 20 Round Thermold Black Zytel Nylon Construction4.0000
Reviewer: jimbo23
Works well and drops free from both my SIG 556 and Bushmaster, and it holds the bolt open on both. Can't beat the price. I'm buying more.
5.0 Rating Nice Mag.. No Problems - 1/18/2012Mag AR-15 5.56 NATO 20 Round Thermold Black Zytel Nylon Construction5.0000
Reviewer: LT
Bought 2 mags for Bushmaster XM15. They sit nice in the magwell with no feed jams and no problems with release. Needed if u put a bipod on ur AR. The 30 round mag is too long.
 
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Mag AR-15 5.56 NATO 20 Round Thermold Black Zytel Nylon Construction
Mag AR-15 5.56 NATO 20 Round Thermold Black Zytel Nylon Construction		x