Sig P322 magazine feeding issues

Are you having problems with a rifle or handgun? Having problems with a magazine? This is the place to post for help or to help others. If you fixed that nagging problem with your AR-15, this is the place to post how you did it.
Post Reply
User avatar
Jhp1911
New to ArizonaShooting.org
New to ArizonaShooting.org
Posts: 6
Joined: September 12th, 2024, 11:56 am
Reputation: 0
Location: Casa Grande

Sig P322 magazine feeding issues

#1

Post by Jhp1911 »

After researching all I could find on P322 feeding issues, I discovered that, aside from not staggering rounds correctly, the issue with both 10 and 25 rd mags is that the engineering of the feed lips is poor - the factory plastic magazine feed lips do not control the round properly and allow the round to "jump" out of the feed lips before the nose of the round enters the chamber and the magazine is too small front to back and wobbles substantially in the mag well. I modified the rear portion of the feed lips of first one to test and now eight 10 and 25 rounders to keep the round controlled for another 3/32" of travel before releasing the round and also added a little material to the rear of the magazine body (and yes, it still drops free) - now I have ZERO feeding issues with RN, HP, plated, coated etc. ammo - ZERO. I have messaged SIG several times in different ways to try and interest them in producing reliable magazines for the P322 but evidently they do not want to essentially admit that they rushed yet another product into production without adequate testing.


User avatar
YNOTAZ
ArizonaShooting.org Member
ArizonaShooting.org Member
Posts: 1734
Joined: June 3rd, 2018, 10:01 am
Reputation: 9
Location: NW Valley

Re: Sig P322 magazine feeding issues

#2

Post by YNOTAZ »

Interesting. Yeah can easily screw up stacking in P322, be nice to get reliability up.
User avatar
blasternaz
ArizonaShooting.org Member
ArizonaShooting.org Member
Posts: 508
Joined: December 3rd, 2021, 4:57 pm
Reputation: 5
Location: Phoenix

Re: Sig P322 magazine feeding issues

#3

Post by blasternaz »

Pictures of your mods would be appreciated! Lots of 322 owners out here. Thanks.
User avatar
Jhp1911
New to ArizonaShooting.org
New to ArizonaShooting.org
Posts: 6
Joined: September 12th, 2024, 11:56 am
Reputation: 0
Location: Casa Grande

Re: Sig P322 magazine feeding issues

#4

Post by Jhp1911 »

I have included a photo of a P322 magazine with modifications to the rear portion of the feed lips on one side - the lip closest is the OEM shape, the bottom lip shows my modification to control the round a little further as the bolt moves it out of the magazine into the chamber
IMG_5215.JPG
User avatar
YNOTAZ
ArizonaShooting.org Member
ArizonaShooting.org Member
Posts: 1734
Joined: June 3rd, 2018, 10:01 am
Reputation: 9
Location: NW Valley

Re: Sig P322 magazine feeding issues

#5

Post by YNOTAZ »

What did you use to add material before shaping?
User avatar
Jhp1911
New to ArizonaShooting.org
New to ArizonaShooting.org
Posts: 6
Joined: September 12th, 2024, 11:56 am
Reputation: 0
Location: Casa Grande

Re: Sig P322 magazine feeding issues

#6

Post by Jhp1911 »

I used 5 minute JB Weld which for some reason is less brittle and more durable in this application than regular JB Weld.
User avatar
blasternaz
ArizonaShooting.org Member
ArizonaShooting.org Member
Posts: 508
Joined: December 3rd, 2021, 4:57 pm
Reputation: 5
Location: Phoenix

Re: Sig P322 magazine feeding issues

#7

Post by blasternaz »

Thanks for the pics and product update. You mentioned adding some material to the back of the mag as well. Did you just do that near the top of the mag or the entire length of the mag?
User avatar
YNOTAZ
ArizonaShooting.org Member
ArizonaShooting.org Member
Posts: 1734
Joined: June 3rd, 2018, 10:01 am
Reputation: 9
Location: NW Valley

Re: Sig P322 magazine feeding issues

#8

Post by YNOTAZ »

Jhp1911 wrote: September 13th, 2024, 9:06 am I used 5 minute JB Weld which for some reason is less brittle and more durable in this application than regular JB Weld.
Thanx. Something interesting to play with.
Post Reply