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Two 30 round AR-15 magazines coupled together, for example, is often a cheaper and more reliable alterative to a 60-round drum magazine, especially for applications such as home defense. However, jungle style magazines can often be impractical as it exposes the rounds and feed lips to foreign objects like mud and dirt which can cause malfunctions.
For example, factory and aftermarket receivers using the Remington 700 footprint are produced with various types of action threads, all with a 26.99 mm (1 + 1 ⁄ 16 in) diameter, but with a pitch of either a 1.588 mm (16 TPI, Remington standard), 1.411 mm (18 TPI) or 1.270 mm (20 TPI, Savage standard).
The converted rifles were provided with proprietary 20 round detachable box magazines manufactured by Metalúrgica Centro to fit the SAFN 1949 rifle conversions. The 20 round steel magazines are proprietary, but were made to share the magazine loading charger with the FN FAL rifle used by the Argentine Army . [ 7 ]
The G3A3 (A4) uses either steel (260 g) or aluminium (140 g) 20-round double-stacked straight box magazines, or a 50-round drum magazine. H&K developed a prototype plastic disposable magazine in the early 1960s, but it was not adopted as aluminum magazines were just as light and proved more durable, as well as easier to produce.
Many non-U.S. and commercial magazines have been developed to effectively mitigate these shortcomings, e.g., H&K's all-stainless-steel magazine, Magpul's polymer P-MAG, etc. [163] [162] Production of the 30-round magazine started late 1967 but did not fully replace the 20-round magazine until the mid-1970s. [ 162 ]
A STANAG magazine [1] [2] or NATO magazine is a type of detachable firearm magazine proposed by NATO in October 1980. [3] Shortly after NATO's acceptance of the 5.56×45mm NATO rifle cartridge, Draft Standardization Agreement ( STANAG ) 4179 was proposed in order to allow NATO members to easily share rifle ammunition and magazines down to the ...
Image credits: thewifeaquatic1 To gain a better understanding of these transitions, we got in touch with PAWS, an animal welfare nonprofit based in Lynnwood, Washington, dedicated to ...
Magpul has been granted a patent [47] for a STANAG-compatible casket magazine, [48] and such a magazine was also debuted by SureFire in December 2010, and is now sold as the MAG5-60 and MAG5-100 high capacity magazine (HCM) in 60 and 100 round capacities, respectively, in 5.56mm for AR-15 compatible with M4/M16/AR-15 variants and other firearms ...