Midwest Industries AR-15/M4 Stock Wrench

The description lists this tool as accepting a 1/2" torque wrench, but as others have pointed out, the slot in the wrench is much too big to properly fit 1/2" drive. Other tools with this design label that slot as an A1/A2 flash hider wrench, which is what it actually is. This wrench is only to tighten by itself, not in conjunction with a torque wrench. Probably would be okay for the flash hider, but since it's impossible to measure torque for the castle nut, it's not useful for that.
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<br>From PA: We're very sorry for the confusion and we'll get our page updated.

Works great, functions as it should. Couldn't beat the price

Gets the job done but only by hand, which is difficult considering its small size and thinness. Does not properly fit a 1/2" torque wrench. The hole is way too big at .65" from flat to flat and strips once you apply a little force. This tool is the bare minimum to get the job done. Get a higher quality one if you plan on more than one build.

I didn't need a full armors wrench just something for the castle nut (cheap enough to justify over using a punch to set the castle nut). While I didn't use the torque wrench cutout, I will now that my build is confirmed working. Wrench worked great!

works great.

works as designed, fits perfect

This wrench was just what I needed to install my spikes tactical buffer tube on my yankee hill lower. Fit the castle nut perfectly! Can't beat the price from primary arms with fast shipping! Thanks again primary arms

I got this to install a buffer tube on my ak and change the end plate on my ar this tool is simple but effective for the money you can't beat it!

This is a great wrench, especially for the price. It did everything it claimed it would do. Great purchase I made with this tool.

A Low Cost tool that works greatGreat Service from Primary Arms

This may "tighten" a castle nut to about as tight as a toddler can get it, but try using this to loosen a castle nut that was professionally tightened. It doesn't work because it simply doesn't grip enough with the 3 "teeth." They end up not fitting extremely tight enough, so then it slips & you scratch the heck out of your castle nut. Also, you NEED some winter gloves or something because it's skinny & cuts into your hand. Kudos to PA, though, for shipping this out to me in only 2 days!! Awesome company (PA)!

Not a bad castle but wrench. Better than others I've owned

Totally easy than using my man hands to install a buffer tube.

Nothing special except the price. it works and it was 4.99. Win Win in my book.

Does the job. No need to pay for more...

Quality product, great service and fast shipping.

Well made with good fit.The stamped steel wrench has been de-burred and leaves no marks on the nut.

Well made with good fit.The stamped steel wrench has been de-burred and leaves no marks on the nut.

Works great.

Simple, cheap, and does the job.

worked. no frills. great price

Ordered and 3 days later the wrench was in my mailbox and the qualty is a lot better the the tapco crap wrench.

This wrench works just fine when the castle but you are working with is not staked. Lines up well with nut but easy to bend.

Works as expected, long enough to provide good leverage!

Works great. exactly what I am looking for in a stock wrench.