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A3 Industries

Stribog Polymer Lower

Stribog Polymer Lower

SKU:REC-100-P

Regular price $199.95
Regular price Sale price $199.95
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Fits these firearms:Grand Power Stribog

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Free shipping on orders $500+ 30-day returns Lifetime warranty

Specifications

  • Weight: 0.62 lb
  • Country of origin: USA

Product Description

Expand your Stribog’s customization options with the A3 Industries Lower. Designed exclusively for 9mm Stribog models, this lower accepts compatible AR-pattern single-stage triggers, selectors, and grips, giving you more options to tailor your setup.

 

The magazine well is designed for CZ Scorpion-pattern magazines rather than original Stribog magazines. Its geometry was developed to support consistent feeding across compatible magazine options, with PSA 35-round magazines offering the best overall performance in our testing.

 

The lower is injection-molded from 30% glass-reinforced Zytel polymer and ships with upgraded controls, including a hybrid aluminum/steel bolt release and an ambidextrous TRI-Lever magazine release.

 

Features

 

  • Designed exclusively for 9mm Stribog models

  • Accepts compatible AR-pattern single-stage triggers, selectors, and grips

  • Uses compatible CZ Scorpion-pattern magazines

  • Injection-molded, 30% glass-reinforced Zytel construction

  • Upgraded 7075 aluminum bolt release with a hardened steel contact insert

  • Low-gloss black hardcoat finish and textured bolt-release thumb levers

  • Fiber-reinforced Zytel TRI-Lever magazine release

  • Steel ball-detent takedown pins allow the factory lower to remain assembled

 

Included Components

 

  • Hybrid machined aluminum/hardened steel bolt release

  • A3 Industries polymer TRI-Lever magazine release

  • Steel ball-detent takedown pins

  • 1/4" grip screw

  • Selector detent and spring

 

Magazine Compatibility

 

Magazine dimensions and follower designs vary by manufacturer and can affect feeding and last-round bolt hold-open function.

Magazine Fit & Performance
PSA 35-round — recommended Good magwell fit, reliable performance, readily available, and requires no modifications
Magpul 35-round Good magwell fit, but feed-lip fitment modifications are commonly required; last-round bolt hold-open can be inconsistent
ETS 40-round Good magwell fit, but may fail to feed the final one or two rounds
CZ factory magazines Loose magwell fit; function varies between magazine versions
Magpul, F5, and ProMag 50-round drums Not compatible

 

Important Compatibility Notes

 

  • 9mm Stribog models only.

  • Single-stage triggers only. Two-stage triggers do not reset properly in this application.

  • Not recommended for use with aftermarket buffer kits or short-stroke kits.

  • PSA 35-round magazines are our recommended option for fit, value, and reliable operation.

  • 5 stars: 33 (83%)
  • 4 stars: 7 (18%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
R
R. N.

Was a difficult choice between this and Lingle, but since I have an AR-V and lots of Scorpion mags I chose A3, as the PSA mags drop free and feed flawlessly. Had a few hiccups when I received the lower. Ordered the trigger and ambi safety as well. The safety was a bit wonky and customer support got one out to me immediately. Also had some issues with the takedown pins but AGAIN, customer service was all over it! I'm close to 2k rounds thru with this receiver. It's been flawless. The recommendations about which mags to use are spot on. In order PSA/Magpul/Scorpion OEM. I recommend PSA. Buy 5 or more and they're $15/ea. I clean this firearm all the time and the lower fits every bit as tight as it did on day one. Super impressed!
I'm about ready to go stock hunting, I live in a free state so the brace is going away. I will be buying the stock from A3. Their customer service as well as a fantastic product has made me a fanboi.

D
David D.
A3 Stribog lower

This made all the world of difference in performance feeds every type round excellent product I will continue to enjoy and thank you guys for such a great product

J
James S.
Love it!

This lower is great! Installed on my SPA1. I went with the Magpul PMAG for my magazine choice. And I did have to file down part of it to get it to fit right (as suggested by A3 tactical) I also noticed that it fits better if you only load 30 rounds instead of 35. Not sure why. Maybe it needs to be filed more still? I just didn't wanna overdo it and wreck the magazine. I haven’t got many rounds through it yet but so far so good. It was easy to install. I love the mag release much better than the stock lower. I also bought the suggested rise armament drop in trigger and I love that as well. Super crisp.

H
H D.
Flawless Scorpion Mag Stribog SP9A3 Lower Receiver

The Stribog lower receiver is a well-design piece. Fitment to upper is nice and tight without any slop. CZ Scorpion Gen 2 and PSA AKV magazines worked flawlessly without having to do anything. The lower was completed with Triggertech AR adjustable trigger and Magpul grip for a fantastic setup. The HBi short stroke buffer initial testing seemed to be fine but needs more live fire confirmation before I can attest that it would function 100%. Overall this is a great product and a good buy!

R
Robert S.
A3 Tactical Stribog Lower Rcvr

Absolutely love the A3 Tactical Stribog lower receiver! Not only does it look great and function flawlessly, it allows for the upgraded mag and bolt releases, trigger, grip and safety selector of your choice. Phenomenal product and super happy. The Stribog SP9A3S build is now complete!

J
Jason G.
Best Stribog upgrade!

Hands down the best upgrade that can be purchased for the Stribog platform. No jams, fte, ftf. The magpul mags drop free and DONT brake on the feed lips. I was able to shoot 115 and 124 round and flat nose ammo and Hollow Points no malfunctions of 350 rounds. With the Rise trigger and this lower 10 for 10 at 100 yards at a 6 inch circle with hollow point ammo. Don’t waste time with the OE Stribog mags. Get this lower and use the CZ platform mags and never look back.

N
Nicholas S.
ScorBog perfection

This will be my 3rd stribog/Scorpion/AR lower set up and it doesn't disappoint! Super nice fit and finish and this is a must for any Stribog owners. This lower takes the Stribog to a whole different level. Thanks Brett for all the R&D that went into this to make it a awesome mod.

s
shane m.
Like a completely different gun

Wow what a difference this made. My Bog runs like a dream.

E
Earl C.
Worth it!

Glad I bought this lower! I hesitated for way too long on buying this, but I'm glad I finally did. Now I can use my CZ Scorpion mags with this instead of the crappy proprietary mags that come with the Stribog. This lower also takes AR parts, which is great and I used my CMC drop-in trigger. Took it to the range and it ran flawlessly!

S
Shaun M.
As described

Received and went together as advertised and much better design than the original stribog. If I had 1 thing to nitpick, it would be that it was tight as hell going together. Definitely won't be tearing down after every range trip, although there is 100% no slop or wobble , so that's a plus.

T
Tha Y.
Bog

The finishing is solid and awesome. I would recommend to any one with a stribog to pick one up.

C
Cheyne S.
Don’t hesitate

Seen a few people post about the a3 changing their bog build, it’s all true from the paddle mag releases to AR controls makes the extraordinary price worth it.

K
Kenneth R.
Quality product!

Great build quality. Addresses all of the stribogs shortcoming and now I can use scorpion mags on multiple guns!

E
Ethan B.
Great aftermarket lower!

Great aftermarket lower and a huge upgrade to the Stribogs performance and ergonomic functionality.
-The Lower's build quality is very solid
- PSA MAGS fit like a glove.
- Rise PCC trigger is AWESOME.

R
Robert R.
Quality AND Customer Service

Excellent product with quick delivery

L
LEON T.
Well made product with room for improvement

Everything arrived in good condition and was installed easily. Unfortunately the package did not come with a safety detent or spring so I had to order those to complete the build. It would have been nice to see it come with those.

J
James M.
A3 complete lower for Stribog

Took the Stribog out today for the first time since getting the complete A3 lower and I have to say I’m very pleased with it’s performance. I had no missed feeds or jams and everything worked exactly as it was supposed to, I put about 300 rounds through it no problems at all.

B
Brad I.
Takes the Bog to a whole other level

A+ on all levels: Quality of lower is fabulous..mag release, the magazines themselves is much better than the OEM. The trigger is as clean as can be. And, the safety action is crisp. I'm very happy with this upgrade. It was worth the $400 upgrade. Now I'd stack my Bog (A3) up against any PCC.

P
Paul B.

Super easy to put together and the fitment is perfect. Great upgrade

R
Rory A.

Great lower. The final piece to my fully kitted SP9A1.

H
Hector L.
Stribog lower

The purchase was hassle free, but I'm still waiting to receive my item, so can't rate the item yet.

D
Daniel W.
Amazing!!

I highly recommend upgrading your stribog with this!!

I
Ian B.
Works With PMAGs

I ran six full Scorpion PMAGs through this and got zero jams. Two of them locked back early and didn't fire the last shot. I can live with that and will isolate and correct those mags. by shaving the feed lips. The 20rnd stock mags that came with the Scorpion did not do so well. Avoid those.

R
Rhamine P.
So beautifully made!

Lower is lightweight yet very strong. Looks great and price was right. Fits ETS, PSA, Magpul and factory Scorpion magazines with no issues.

J
Joel F.
Stribog lower

Fit and finish very nice , love using standard AR parts , now use CZ Scorpion
Mags , exactly what I was looking for

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