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The Midwest Industries MISTAP is one of those parts that quietly solves a problem a lot of folks run into. If your PCC, sub gun, or other platform has a vertical Picatinny rail on the back of the receiver but no way to hang a proper stock, this adaptor bridges that gap. It clamps straight to a standard 1913 rail and accepts a mil-spec diameter stock tube, so you can bolt on just about any AR-15 collapsible buttstock you already have sitting in a parts bin.
The six-position tube gives you real length-of-pull adjustment, which matters whether you shoot in a t-shirt or a heavy jacket. Everything is machined from 6061 aluminum with a black hardcoat anodized finish, so it holds up to handling and range abuse without looking beat up. A nice touch is the hollow, water-resistant compartment tucked inside the tube. It is a handy spot for a spare battery, a broken shell extractor, or small parts you do not want rattling loose in a bag.
Installation is straightforward with basic tools. The adaptor locks onto the rail with a cross bolt, and the folks who run these consistently point out that the key is torquing it to spec rather than eyeballing it. Snug it down properly with a torque wrench and it feels rock solid with zero wobble, even on hard-recoiling 9mm platforms. Loose lockup almost always traces back to a bolt that was not tightened enough, so grab a torque driver and follow the included instructions.
One thing worth knowing up front: the MISTAP is a stock adaptor, not a buffer tube, so it does not house a buffer and spring. It is meant for platforms that do not need a traditional buffer assembly, like a Scorpion, an AK with a rear rail, or a PCC. Measuring 6.75 inches and weighing about 7.5 ounces, it keeps things compact while opening up your stock options. It is designed and built in the USA, which is the kind of quality Midwest Industries has a long reputation for.
It works with any platform that has a vertical 1913 Picatinny rail on the back of the receiver, which covers a lot of PCCs, sub guns, and rifles like the CZ Scorpion or an AK setup with a rear rail. It accepts a mil-spec diameter stock tube, so you can run just about any standard AR-15 collapsible buttstock. If your receiver ends in a rear Picatinny rail rather than a threaded buffer tube hole, this is the part you want.
No, it is strictly a stock adaptor and does not house a buffer and spring. It is designed for platforms that do not need a traditional buffer assembly to cycle. Think blowback guns like the Scorpion or PCCs, not a standard AR-15 upper and lower that relies on a buffer.
This almost always comes down to the cross bolt not being torqued to spec. People who initially felt a little play report that once they torqued it down properly with a torque wrench, it locked up rock solid with no movement. Follow the included instructions and use a torque driver rather than guessing, and it will feel tight.
The tube has a hollow, water-resistant internal compartment that gives you a discreet spot to stash small items. It is handy for a spare optic battery, small parts, or anything you want to keep with the gun but out of the way. The water-resistant design helps keep the contents protected during rough weather or transport.
| UPC | 812102033158 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | MI-STAP |
| Color | Black |
| Length | 10.0500 |
| Product Type | Adaptor |
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