ProMag Industries makes an excellent magazine for the Ruger Mini-14 rifle. This magazine has a heat treated steel body with a black oxide finished and a strong chrome silicon spring for smooth feeding. This magazine will hold 20-rounds of .223/5.56x45mm ammunition and will give you a long service life.
Optimized for Function
ProMag Industries makes among the best aftermarket magazines for a variety of pistol and rifles. This Ruger Mini-14 magazine is another great addition to their line.
For molding the body of the magazine, ProMag elected to use steel. The ensures that the magazine will be very durable and will stand up to hard use. The steel has also been heat treated and finished with a black oxide finish.
A chrome silicon spring provides upward pressure to feed the round to your rifle. A polymer polymer follower ensures smooth feeding and reliable function.