Been waffling on getting a 9mm version, but decided I had enough 9mm PCCs, so picked up a SP45A3.



Build quality looks great, takes UMP45 mags (which I already have), AR trigger, and threaded barrel.

Only gripe right now is that the built in iron sight is not the flip ups used on the 9mm version. It’s a tiny front post and rear notch in a channel that runs down the center of the top rail. For some reason, the “rear” sight is at about the mid point of the rail instead of the rear, and I just have trouble seeing it. Need to get a RDS.

Hell yeah, man! Congrats! Looking forward to the range report.

The strong recommends for this one are the HBI short stroke buffer, locking charging block, (probably their safety kit, too, honestly) and their B&T MP5 stock retrofit. I haven't paid for a stamp yet, but I bought the stock retrofit kit and swapped in a compatible CZ brace I had sitting around from my Bren since it's a direct swap. The adapter they make is quality, and you can fit any H&K pattern folding stock in there, like the G36 stock and... the UMP stock.

I like that for the big boy calibers in the A3, they extended the receiver another Mlok section to ride more or less flush with the barrel. I'm going to be picking up an extension for my SP9A3 to get there. Their choices with backup sights are a bit puzzling, honestly. The move to a Picatinny channel was an improvement with these over the 9mm, but having the front sight in the middle of the rail is just dumb. Thankfully, when folded down, they're more of less completely contained unlike with the 9mm. I may just remove mine. Seems like a number of guys with the 45 and 10mm are removing theirs, too.

Anyways, welcome to the club! Excited for you.

Thanks! I’ve looked at the HBI stuff, and not sure it needs the short stroke buffer as much as the 9mm ones. The factory buffer is different on the 10mm/45 guns, and from pulling the bolt all the way back, it doesn’t have much travel past the point where the bolt locks back. I’ll have to see when I get my optic and can go out and shoot it and see if I run into any problems.

The HBI locking charging block is on my to buy list. Also thinking about a right safety delete kit, but it isn’t as annoying as on my Scorpion.

Will probably end up getting a stamp, especially since it’s so easy to find 922r parts for.

I’m curious how it’s possible for the guys to remove the iron sights. The front sight is a small height adjustable rotating post like an AR front sight. I guess you can take that out, but the rear sight is just a notch cut into one of the rail cross ribs. You can’t remove that.

quote:

Originally posted by Dwill104:
I’ve looked at the HBI stuff, and not sure it needs the short stroke buffer as much as the 9mm ones. The factory buffer is different on the 10mm/45 guns, and from pulling the bolt all the way back, it doesn’t have much travel past the point where the bolt locks back.

That's good to hear. I haven't seen pics of one pulled apart yet, so I'm glad to hear they tweaked the buffer.

quote:

Originally posted by Dwill104:
Also thinking about a right safety delete kit, but it isn’t as annoying as on my Scorpion.

If I hadn't done a lower swap to use Scorpion mags, I would have definitely done a right side delete. I'm not sure if the dimensions are different on the lower and grip between the 9 and 10/45 or not, but the right side safety on my factory lower pivots right into my first knuckle, which blocks it unless I use a loose grip.

quote:

Originally posted by Dwill104:
Will probably end up getting a stamp, especially since it’s so easy to find 922r parts for.

Yep, a couple HBI parts and a nice trigger and you're there.

quote:

Originally posted by Dwill104:
I’m curious how it’s possible for the guys to remove the iron sights. The front sight is a small height adjustable rotating post like an AR front sight. I guess you can take that out, but the rear sight is just a notch cut into one of the rail cross ribs. You can’t remove that.

Hmmm. This, I'll need to double-check on. It's entirely possible that I read something wrong or misunderstood someone.

What is the serial numbered receiver on the Stribog? I know it there are numbers on multiple components, which is common on European guns. I assumed it was the lower because the metal serial number plate is molded into the polymer lower, which is typical for polymer guns (especially pistols).

It's the upper. There's aftermarket lowers, and they don't require an FFL. My factory lower has serials in all the same places yours does.

Damn it, that is cool. I might have to have the 10mm variant.

quote:

SP45A3

Oddly I don't see this model on the GP website, but it seems for sale in a couple of places. I am going to explore this, the one thing I hate about my LWRC is that it still needs a neilsen device and that precludes running trilug.

quote:

Originally posted by hrcjon:

quote:

SP45A3

Oddly I don't see this model on the GP website, but it seems for sale in a couple of places. I am going to explore this, the one thing I hate about my LWRC is that it still needs a neilsen device and that precludes running trilug.

Relevant and pertinent: Fella on Reddit posted this today. LWRC, UMP built up off a USC, and the SP45A3.

I would have no idea how an LWRC would possibly run suppressed with no neilsen. And of course the king of these .45's smg's the APC45 wasn't there as its just about perfect except for the proprietary mags. Of course I have a zillion UMP mags for the LWRC and the HK so I'm searching for one of these in stock at a decent price. I bet it works pretty well. I don't see rollers etc. available so how does one maintain one of these?

I haven't had to talk to them yet, but the importer is Global Ordnance, and I see good things about people contacting them for parts and support.

I checked wikiarms and couldn't find an SP45A3 in stock anywhere. They're relatively new, I'm betting supply isn't keeping up with demand. I'm seeing good things overall, so it might be tricky to get ahold of one for a bit.

quote:

Originally posted by P220 Smudge:
I haven't had to talk to them yet, but the importer is Global Ordnance, and I see good things about people contacting them for parts and support.

I checked wikiarms and couldn't find an SP45A3 in stock anywhere. They're relatively new, I'm betting supply isn't keeping up with demand. I'm seeing good things overall, so it might be tricky to get ahold of one for a bit.

JoeBob Outfitters and Rainer Arms both have them in stock.

And that, kids, is why you don’t run the LWRC SMG45 without a booster piston.

Got mine from Bud’s and it came with the brace. Not sure if they all do.

Submitted a Form 1 on Tuesday and was surprised to get it back approved 48 hours later. Wasn’t expecting it to come back that quick. Now I have to figure out what stock, get it engraved, swap out some parts.

Hey, that's great!

What stock you think you're gonna go with? Lots of choices.

quote:

Originally posted by P220 Smudge:
Hey, that's great!

What stock you think you're gonna go with? Lots of choices.

Either the B&T stock, or I have an old MCX Kate Moss stock laying around.

I think either one of those would work great. The B&T stock really gives it that H&K look, especially with the UMP mags. The Kate Moss stock takes it in the futuristic direction. Can't go wrong either way.

So I went with the Sig Minimalist Plus stock. I had forgotten the original reason I removed the Kate Moss stock from my MCX was because it was very hard to fold and unfold.



Went out yesterday for first shots. One failure to feed with two of the factory mags at about 6-8 rounds left. Fired cases extracted, but jammed during feeding of next round. Rounds looked OK, so put them back in the mag and the rest of the mag fired OK. Other factory mags and two UMP mags ran fine. Taking the mags apart later, I noticed that two of the factory mags had some drag on the follower as it neared the top, while the third didn’t. I suspect that’s the issue and just need to lightly sand and lube the points where the follower contacts the inside of the mag.

Overall, I’m pretty happy with it. Ran it both suppressed and unsuppressed. The FTF were during suppressed running.

Looks great! Glad it ran well for you and that the issues you had were at least explainable with those spots on the followers. I may well be in for an SP45A3 next year.

I'm glad Grand Power went for compatibility with another magazine that is known to work on these larger caliber versions, because they don't seem to have this magazine stuff figured out. The only issues I've had with my SP9A3 have all been magazine related.

thanks alot.. Now I want one in 10mm