• Watch Out for Scammers!

    We've now added a color code for all accounts. Orange accounts are new members, Blue are full members, and Green are Supporters. If you get a message about a sale from an orange account, make sure you pay attention before sending any money!

Single-Shot Mag Block for Accuracy International Short Action Rifles

Cujo

Private
Full Member
Minuteman
Jan 11, 2008
22
4
Las Vegas, NV
A couple of years ago, I approached one of my friends about the possibility of making a single-shot mag block for my AI. The majority of the time, I find myself loading one round at a time and hardly ever loading from the magazine. Most of my shooting is at the range doing load development, shooting F Class matches or varmint hunting. He’s a machinist with a pretty tight schedule so I wasn’t really expecting anything quick. I was hoping that the end product would be functional, aesthetically pleasing and feel good in the hand.

One of the initial prototypes held the loaded round on the left side and would hit the corresponding feed ramp on its way into the chamber. We thought that would be the best approach considering the staggered mag and dual feed ramps. . . It was great in theory but in match conditions, I noted that the round would ricochet and jam just outside of the chamber. Over time and many revisions later, he made one that fit and functioned fine. This took approximately 25 different design modifications and over 200 hours of programming and test fitting for function.

7065743




He wanted these to be able to function flawlessly in AI short-action rifles with a .470 bolt face diameter. That includes 6mmBR, .243, .308, 6.5 Creedmoor, etc. The overall dimensions mirror the OEM AW magazines but have no sharp edges. Here’s the final prototype in a machined finish:

7065746



Here is the final product with Type III hard anodize:

7065750


I’m extremely satisfied with the end product. It’s been performing fine in my F Class matches and at the range. These have been thoroughly tested in Accuracy International AW, AT, and AX short-actions. Let me know what you guys think.
 
Last edited:
I don't have an AI rifle but the 308 bob Sled Works for me in a Rem 700 308 and 6 Dasher and 6.5 Creedmoor in Defiance. The 223 Bob Sled works for me in a Tikka T3 in a KRG X-Ray.
 
The “A. I. .308” Bobsled won’t fit in an AI AW, AT, or AX. The Accuracy International AW mags have different dimensions than those used for AICS. That’s the reason why I asked my friend if he was willing to make one.
 
Last edited:
Looks good. Are you selling these?

Also, you need a 3D printer! I can’t believe you spent that much time in machining prototypes. 3D printing, even with a consumer quality model, makes prototypes like these in their sleep, for pennies on the dollar compared to machining. The tolerances aren’t quite what a CNC can do but they are surprisingly close.
 
  • Like
Reactions: BLKWLFK9
Interested.

Let us know when they're ready :)
 
Also, you need a 3D printer! I can’t believe you spent that much time in machining prototypes. 3D printing, even with a consumer quality model, makes prototypes like these in their sleep, for pennies on the dollar compared to machining. The tolerances aren’t quite what a CNC can do but they are surprisingly close.
If the only tool you have is a hammer, every problem looks like a nail. ;-)
 
  • Like
Reactions: Nodakplowboy
Just came across this thread. Anyone know if there's a version of these that works for the AXSR? I assume one that would work for the AXMC would work, but I cant find one for the AXMC either.