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Crosman A4-P Full Auto

Available in .177
Sale $129.99
  • Save $100.00 (43%)
  • Reg Price $209.99
  • In Stock
  • Code: AGD-532410782 · $129.99 · .177 · 400 fps
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The Crosman A4-P Full Auto is a fun and exciting tactical CO2 BB pistol designed around the AR platform, so you can get the same can blasting experience of an AR type air rifle, but in a more maneuverable size. With both semi auto and full auto operation and reaching speeds of up to 400 fps, this airgun will give you hours of enjoyment when plinking in the backyard.

This airgun lets you have the feeling of real steel AR style operation, with realistic weight and functions, plus blowback action to simulate recoil. With a 25 round drop free magazine that holds two 12 gram CO2 cartridges and BBs, you can get something that works a lot like a firearm without wasting a bunch of money on ammo or worrying about excessive noise.

The realism of this airgun continues with an AR compatible textured pistol grip for additional comfort and a firm hold, plus a removable textured sleeve covering an AR compatible buffer tube. You can swap or modify either of these items to customize the gun to suit your preferences.

For optics options, this air pistol includes an extended top Picatinny scope rail with a removable red dot sight, plus three additional Picatinny rails surrounding the handguard so you can add things like lasers, bipods, and lights. If you're looking for a budget friendly CO2 BB gun with full auto and semi auto capabilities that looks and feels like an AR type gun, get a Crosman A4-P Full Auto at Airgun Depot now.

Crosman A4-P Full Auto Features:

  • CO2
  • Full/semi auto
  • Max velocity: up to 400 fps
  • 25rd drop free magazine
  • AR compatible textured pistol grip
  • Quad Picatinny scope and accessory rails
  • Red dot sight
  • AR compatible buffer tube and removable sleeve
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  • ManufacturerCrosman
  • Caliber .177
  • Velocity 400 fps
  • Condition New
  • Ammo Type BBs
  • Action Semiautomatic/Full-auto
  • Barrel Style Smooth bore
  • Fire Mode Repeater
  • Gun Weight 5.30
  • Overall Length 21.20
  • Loudness 3-Medium
  • Magazine Capacity 25
  • Mechanism PCP & CO2
  • Rail Weaver/Picatinny
  • Safety Manual
  • Front Sights none
  • Rear Sights none
  • Shots per Fill 0
  • Trigger Adjustability 0
  • Trigger Action 0
  • Use Plinking/Fun
  • Warranty 1-year limited warranty
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Average Customer Review
4.08 Reviews
63% (5)
25% (2)
0% (0)
0% (0)
13% (1)
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By JayMarch 6, 2024


Thing i like about this bb gun is that its built how it shoot the weight the Mag the stock barrel is excellent it soooooooo much thing about this bb gun

Its sight

By catAugust 22, 2023 Verified Purchase

love the gun and it was easy to order and follow the shipment.

1. aurgun depot does not carry enough accessories for the A4P. 2. UPS charges more brokerage fees than the sales tax and duties together to deliver to Canada. Im not sure if you have a different option for shipping.

By TomJune 30, 2023 Verified Purchase

Need instructions to return!


The gun WILL NOT fire. Instructions are not legible!

By Cindy Zinkan April 28, 2023 Verified Purchase

Absolutely love it. I need another clip though that I can't find. Thank you.

I can't find Extra clips (magazines).

By JackJanuary 22, 2022

This thing is fun! If you want easy loading, accuracy or supreme build quality go buy a real AR! This is a super sweet bb gun and it does its job well! It's not a super cheap bb gun but you'll feel better about your purchase after basically sawing a few cans in half with it. It seems some folks like to complain about it in the reviews as though they are expecting a marvel of modern engineering when it's actually an extremely awesome toy (potentially sorta dangerous toy) Clean it! Oil it! Wear safety glasses!

Seriously, it's a fully functional, fully automatic bb gun!!!

No complaints here!

By DeanUSAOctober 17, 2021

You will not be disappointed with this gun in your collection!

This gun is outright mind blowing! Excellent accuracy. Was putting BB’s on top of each other from 50 ft in semi auto and had 2 inch groupings in full auto mode. I’m sure those groupings will get better with practice. The gun has some kick so in full auto you have to hang on to keep the grouping tight but that is what makes this gun so much fun. Very pleased with power right out of the box. Full auto dumps 25 rounds in about 2 seconds and trust me when I say it gets the job done. Easy to load amo and CO2. Got almost 6 full clips on CO2 before power slowed so 150+ rounds. The included red dot is on the lower quality side but after just a few quick adjustments had great results. I have a bunch of air guns and will say this will be the first one I grab when I head to my garage range.

The should just sell the gun with the 300 round clip right from the start. The 25 that it comes with is great but this thing is so much fun you will soon understand. Ordered my 300 QR within an hour of opening the box!

By DerekUSAMay 7, 2021

Again excellent auto air-pistol bb gun easy to use with a small barrel, to have to treat vermin on my property and target practice.


By JosephUSAMarch 23, 2021

First off, the gun is awesomely beautiful! Realistic SB AR pistol feel. I've seen conflicting specs of the velocity...even from Crosman. 400fps most places; 430fps other places...which is what the velocity is of most of the other Crosman BB rifle pistols of this type. Chrony'ing it using Crosman Copperhead BBs, it wasn't even getting near the 400fps...I was only getting low 300fps numbers. I also ordered the magazine with the 300rd reservoir; with it I began getting just above the 400fps mark. So apparently there is an air flow issue with the included 25rd magazine I received. I'll be looking to see what type of velocity others get in future reviews. The trigger is horrendous; it must have 25lb. half inch pull to it. In full-auto, it doesn't feel as bad. My initial testing with the gun, semi-auto accuracy does not seem on par with some of Crosmans other semi-auto and full-auto BB offerings, from reviews of others I've seen on YouTube...appears abit more erratic; but it could be me.

Cool looks...full-auto rock & roll...ability to put a full ar buttstock on it if desired.


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Says its pcp & co2 is it both or either one ?

asked David from USA

You can get a PCP adapter for the magazine.

Adam from USA

One more question is the barrel threaded and if so is it 1/2 -28 so you can add an aftermarket suppressor? Thank you Gary

asked Gary from USA

I found the answer 14mm CCW negative threads.

Gary from USA

Joseph you said you can add an AR stock the OEM one comes pinned so I am guessing you remove the roll pin and the OEM stock slides off so the mil spec AR stock just slides on in its place? Thank you Gary

asked Gary from USA

Are there any stocks that fit in this?

asked Diego from USA

Any Mil-Spec

Gary from USA

I may have overlooked this in the items description, but can a stock be added?

asked Duval from USA

Yes, any mil spec stock will fit. The sleeve on the buffer tube must be removed first.

Anthony from USA

What is the but stock that fits this gun

asked Bruce from USA

Does it have and blowback action like the sbr?

asked Carlos from USA


Calvin from USA

Is the 300 round magazine compatible with this?

asked Eli from USA


Joseph from USA


Joseph from USA

Yes, this is just a chopper shorter version of the R1. I'd research on the 300 rd mag or quick load mag you are talking about before purchasing. It rarely loads more than 12 to 15 rds and is super pain to use. At $60 one would hope for a better mag but this certainly isnt it.

Christopher from USA
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