Thats not good, and should be rectified by MDI.
Mine won’t allow the screw to come out.
I rectified the problem myself by deciding to buy my products from Rick from now on.
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Thats not good, and should be rectified by MDI.
Mine won’t allow the screw to come out.
I have an early serial numbered SLR and the takedown bolt's retaining screw does NOT retain the takedown bolt. It slides past and falls right out.
I don't care what anyone says, they should have had one takedown pin cross ways through the receiver. There's enough material there that it could have been done.
Bolts and helicoils are for amateurs.
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There are reasons for the bolt vs push pin.

One of my receiver sets is numbered under 20 and my retaining screw DOES retain the takedown bolt. I don't love the takedown bolt, it was super annoying during barrel break-in...but my assumption is it helped in getting this classified as NR by the RCMP.
There are reasons for the bolt vs push pin.
Hey, stop wasting time on here and get back to work.. I need my upperWell the screw set up has ZERO impact on legal classification, so many of us are at a total loss as to why a screw was used so some enlightenment would be great.
As long as the SFSS could not wire, or duct tape to discharge a single round with either the upper or lower to a corresponding AR upper or lower it is not deemed to be a variant, hence NR status. Ask me how I know?
You can’t lose the screw as there is a smaller screw thst won’t allow it. No doubt pins are more convenient for cleaning but honestly, loosening a screw takes a few seconds. Given the choice I would take pins like on an AR15 , but the screw does work. It’s truly only a big deal if someone wants to make it a big deal.
I only have 200 rounds through mine but the screw is not moving, which seems typical for most users. I did read one or two accounts of loosening screws but they don’t seem to be the norm.
200 rounds....... that’s barely a break in period. The screw is just plain silly for a modern rifle. At some point you’ll have to stop lying to yourself. I can’t help but imagine you explaining this farce to uneducated new comers and having them see it as truth. The system looks awesome. Probably runs awesome. Just like any AR , but, has a flaw that it cannot come back from. We get that you love your new rifle system and are proud of it but not seeing the truth for what it is speaks loudly about you. Sounds like you did have a choice tho, ATRS was the second option. Most people’s first. No ones knocking you for it. We all love our black rifles here.
I have an early serial numbered SLR and the takedown bolt's retaining screw does NOT retain the takedown bolt. It slides past and falls right out.
View attachment 235729
I don't care what anyone says, they should have had one takedown pin cross ways through the receiver. There's enough material there that it could have been done.
And by eliminating the takedown bolt they could have made the front of the magwell lower so there was a decent looking magwell profile. So much fail just because of using a stupid bolt.
Bolts and helicoils are for amateurs.
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Nonsense.
If the rifle works for the purpose I want it to, what is the flaw?
As I said before, we all like pins for easy takedown. But that’s it, that’s all. If the screw does the job, that’s all that matters.
I have an ATRS lower for my 50BMG thst uses a similar system- a screw holds the upper and lower together from the bottom of the front of the receiver. Although it doesn’t have the added benefit of the MDI system that slides together, it just sits in a recess and has a screw that holds the front together. It works fine.
I think some people spend too much time thinking about SHTF scenarios where they need to field strip thier rifle to clear it before the imminent zombie attack.![]()
...and I don’t care what anybody says as this is no big deal unless you make it one. Secondly regardless of how bad you feel the upper and lower are more snug then a real AR with pins. No need for grip tension screws or accu wedges.
Doesn’t everyone have a “REAL” AR 15 for that?..... I sure hope so.
Yes, the SLR's upper and lower fit together snug. Big deal.
FYI, tension screws and accu wedges for the AR were only invented to shut up the whiners who couldn't grasp the concept that the wiggle has no negative effect on accuracy or function.
They serve no beneficial purpose whatsoever as the bullet will have exited the muzzle of the rifle long before movement of the receivers produces any measurable effect.
Degradation in the AR's accuracy due to receiver wiggle is a myth. Likewise an increase in the SLR's accuracy due to a snug receiver fitment is nothing more than another myth.
Yes, but not in this country.
Yes, the SLR's upper and lower fit together snug. Big deal.
FYI, tension screws and accu wedges for the AR were only invented to shut up the whiners who couldn't grasp the concept that the wiggle has no negative effect on accuracy or function.
They serve no beneficial purpose whatsoever as the bullet will have exited the muzzle of the rifle long before movement of the receivers produces any measurable effect.
Degradation in the AR's accuracy due to receiver wiggle is a myth. Likewise an increase in the SLR's accuracy due to a snug receiver fitment is nothing more than another myth.
Yes, but not in this country.
Just out of curiousity what issues did you have with your slr? Takedown screw coming loose?
Do you think if the zombies come they will remain below the 49th? Come on really.

Second regardless of the myth many shooters don't like the feel of a clacker in their hands so a snug fit is preferred.
Holy hate for the SLR. Why people aren't just happy that more and more non-ARs that take AR parts are available, is beyond me.
You guys must be relatively new to guns or really young.... Because this current situation has been a long time dream for a lot of us.
Personally - very happy with my SLR. Have about 600 rounds down the pipe - zero issues. The takedown screw did actually loosen up over about 500 rounds, but was still fully seated - just not tight. Two seconds with an Allen key and it's tight again.
ATRS makes a nice product for sure (I have two billet ATRS lowers), but the SLR was available when I needed it. In the end - competition between companies drives improvements, innovation, and price decreases.![]()



























