The Rock Island Armory Double Stacked 1911 Magazine is a standard factory replacement magazine. This magazine is for 1911 models chambered in .45 ACP and holds 13 rounds of ammunition. It is made of steel and is made to Armscor/Rock Island Armory specifications and tolerances, using the same manufacturing and materials as the original equipment magazines, ensuring perfect fit and operation.
Specifications and Features:
Rock Island Armory/Armscor 54171
.45 ACP
13 Rounds
Steel magazine body
Polymer base plate
Matte Black Finish
Fits:
Rock Island Armory Double Stacked 1911 chambered in .45 ACP
Specifications and Features:
Rock Island Armory/Armscor 54171
.45 ACP
13 Rounds
Steel magazine body
Polymer base plate
Matte Black Finish
Fits:
Rock Island Armory Double Stacked 1911 chambered in .45 ACP
Will work on with some polishing
Fit the gun ok, but will take some polishing to fit the properly. The mag pushes in really hard the last half inch or so and then you actually have to pull pretty hard on the mag to get it out of the mag well.
October 23, 2023
will this fit the ATI Fatboy?
Answer:
It should.
Will this fit Springfield armory 1911 double stack 45?
Answer:
Probably not. This magazine is similar to Para pattern 1911 double stack magazines. The Springfield double stack 1911 in .45 ACP was discontinued some time ago and I was not able to verify if it took STI or Para or proprietary pattern magazines. Springfield's new 9mm double stack 1911, the Prodigy, takes STI pattern double stack 1911 magazines. Also, there are tabs on the grip next to the safety that I typically see on 1911s that take Para pattern magazines which I am not seeing in the online photos of your model.
Is this magazine compatible with all Rock Island 45 acp pistols?
Answer:
No, this is only compatible with their double stack 1911 models. If you would like additional assistance you can reach our product techs Monday thru Friday from 8am to 5pm central time at 1-800-421-8047 or by using our live chat feature.
Will this fit 1911 armscor Phillipine 45 ?
Answer:
If your Armscor 1911 uses a double stack magazine, then this will fit. If your 1911 has a single stack magazine, then this will not fit and you should try item # MAG-234-005.
Will this fit ATI 45 Titan ?
Answer:
No this will not fit. Try item # 44709 or MAG-211.
Will this fit in a STI 2011 45?
Answer:
No this will not fit. Try item # 120157 or 120156.
will this fit a Rock Island Amory 1911 A2 45 acp?
Answer:
Yes this mag will work. The Rock Island 1911 A2's are double stack 1911's.
Will it fit a R.I. M1911 A1 FS ?
Answer:
No. The Rock Island M1911 A1 FS is a standard single stack 1911, it cannot use double stack magazines.
Will this fit my rock island bbr 3.10 45acp?
Answer:
This should fit, however, the magazine will extend past the magazine well.
Will this fit into the rock island armory 1911 gi ?
Answer:
No it will not. Try item MAG-989-001
Will these fit in the CS model?
Answer:
No, the Rock Island CS models use single stack 1911 magazines.
Does this magazine fit the rock island tac ultra fs hc .45 acp? It comes with a 14 round magazine.
Answer:
Yes it should.