The FX Impact M4 is arguably the most advanced PCP bullpup on the market. With features like its Smooth Twist X Superior (STX) barrel system, improved Power Plenum 750 (increased post regulator volume), Adjustable Match Precision MKII (AMP) regulator, external micro and macro hammer spring tension adjustment, and external valve control, the customization options are almost endless.
The M4 includes an improved reversible side lever and a new dual transfer port (.22 and .25 only) that lets you optimize performance for both pellets and slugs. Plus, the new Quick Tune system gives you an easy way to adjust your air rifle with very little need for tools. Of course, the M4 also features the rear Power Block. With multiple barrel lengths and calibers, there's a version for just about any shooter out there!
FX Impact M4 PCP Air Rifle
- FX Smooth Twist X Superior (STX) barrel system
- Interchangeable calibers and barrel liners (sold separately)
- Externally adjustable AMP MKII (Adjustable Match Precision) regulators
- Externally adjustable hammer spring tension with macro and micro adjustments
- Externally adjustable valve control
- Quick Tune System for virtually tool-free adjustments
- Power Block
- Wika dual pressure gauges: one for air cylinder pressure, one for regulator pressure.
- Forward mounted reversible sidelever cocking
- 250 BAR (3,625 PSI) max. fill pressure
- 170 BAR max regulator output pressure
- Equipped with improved 75cc Power Plenum 750 - allowing for an even wider range of power adjustment
- .22 and .25 cal M4's feature Dual transfer ports - one optimized for pellets, one for slugs
- Male Quick Disconnect fitting
- Adjustable position Picatinny/Weaver optics mounting rail with 30 MOA compensation
- Picatinny accessory rails below cylinder and on each side of the forearm
- Quick Set adjustable match trigger
- Height adjustable rubber buttpad
- UG1 pistol grip
- AR15 style manual safety
- Side Shot magazine capacity: 34 rds. in .177, 28 rds. in .22, 25 rds. in .25, 23 rds. in .30
- Maximum muzzle energy*: 35 FPE in .177, 87 FPE in .22, 100 FPE in .25, 125 FPE in .30
- Includes one side-shot magazine and 3 year transferable warranty
* - using FX Slug Power Kit.
600mm (23.62”) Barrel, Standard Models:
- Available in .177, .22, .25 and .30 cal.
- Removable 480cc carbon fiber air cylinder
- Overall length of 34”
- Weight: 6.85 lbs.
- Shots per fill: 375 in .177, 270 in .22, 130 in .25 and 85 in .30
700mm (27.55”) Barrel, Sniper Models:
- Available in .22, .25 and .30 cal.
- Removable 580cc carbon fiber air cylinder
- Overall length of 38”
- Weight: 7.15 lbs.
- Shots per fill: 330 in .22, 160 in .25 and 105 in .30
- ManufacturerFX Airguns
- Caliber .177
- Velocity 1020 fps
- Condition New
- Ammo Type Pellets
- Action Sidelever
- Barrel Style Rifled
- Fire Mode Repeater
- Gun Weight 6.85
- Loudness 2-Low-Medium
- Magazine Capacity 34
- Mechanism Pre-charged pneumatic
- Rail Weaver/Picatinny
- Safety Manual
- Front Sights none
- Rear Sights none
- Shots per Fill 375
- Trigger Adjustability Two-stage adjustable
- Trigger Action 0
- Use Small game hunting/target practice
- Warranty 3-year limited warranty
Upgraded from hatsan factor rc to the fx m3 and its night and day difference. Totally worth extra $1k
Pros
Everything about it is beautiful and I am very happy with it
Cons
Small air leak at the angle gauge plug plug. Was able to fix it myself
I purchased this in a .25 caliber and after sighting it in it started to have a slow air leak. I contacted fx airguns and the sent me a shipping label to get repaired. Recieved air rifle back and shot it 5 times to sight in and after only 5 shots there was a significant air leak. This is not worth the money. Saw a YouTube video saying this guns only kryptonite is that it is bad for leaks. When I pay this much for something it should work every time I take it out of the case. I have had it to long now because of waiting on repairs that I can't get a refund. Worst 2 grand ever spent.
Pros
Feels good to shoot
Cons
Leaks air to much
Im notorious for regretting my purchases, especially large purchases. This time I dont Feel bad at all. This thing is a tack driver and I love shooting it.
Pros
Love it, dumped a yote at 50yards on the second night.
Cons
Wish the magazines were not so thin. It limits the length of pellet or slug too much. For a rifle that is so adaptable it is unacceptable to be limited by this major factor.
For a compact air rifle this fits the bill perfectly. I wouldn't hesitate to hunt out to hundred yards with this thing. The thing is a scalpel, hitting Tums tables at 70yrds all day long. Do yourself a favor and add a good scope, this gun deserves it.
Pros
I have the Imapct MK3 500mm .30 and must say this thing surprised me. It's insanely accurate with no hold over out to 70+ yrds. I'm using both JSB Diablo's and Hades in 44.5gr and both dead to nuts accurate. I actually detuned the gun to 870fps. Power wheel on 15, Macro 3.75 and front adjustment 5 turns (Marks) out.
Cons
Nees a moderator, pretty loud otherwise. I put a DonnyFL Ronin from my Maverick on it and that tamed things down.
Buy it now. I bought a 9422 Winchester years ago for 100 bucks. It’s worth 1800 now. I would trade it for another of these.
Pros
Out of box one shot zero at 15 yards with ATN 4kPro. Next shot 83 yards. Held slightly high and left for 10 mph cross winds. Shooting at a lodge frying pan. The impact of pan is louder than the gun. Hit it every time. Thank you FX for getting it right!
Cons
Sure I would like it for half the money. But, perfection doesn’t come cheap. No buyers remorse here. Love this gun!
Pros
It's a great gun and it's easy to maneuver. I got mine a month ago and it's flawless. Good job fx.so, far , I can't complain.
Cons
None
Pros
I can say one thing that after I bought an average scope 5 to 25 vortex black diamond and used the jsb exact king pellets I can get 5 pellets on top of each other at 100 yard after good calibration.
I didn't know that a gun like this ?? existed. I can get 5 pellets on top of each ohers if there is no wind. I hope it doesn't breakdown
Cons
Heavy
This gun is worth the wait and very quiet even with the stock moderator. You won’t regret this purchase.
Pros
I’m a long time powder burner and have been using air guns since I got my Crosman 760 in the early 70s. I’m new to PCP and purchased a Hatsan Blitz in .25 about 6 months ago. My FX M3 in .30 arrived about three weeks ago, and I’m blown away. Deadly accurate even when using lesser quality pellets. The technology, fit, finish and accuracy of this PCP are simply exceptional. I love stacking pellets with this rifle.
Cons
Other that a longer picitany lower rail, I can’t think of a thing that I would change. I’d love to see FX develop gun in the M3 format with semi-auto capabilities. That would be a serious game changer.
Thank you airgun depot great communication super fast shipping
Pros
Very quiet and accurate very user-friendly
Cons
Pricey but you get what you pay for
Question?
Login to ask someone who bought this product.I'm a left handed shooter. I understand the bolt can be placed on the left side, but can the magazine be placed as well?
asked John from USANo
William from USACan it be set to left-handed?
asked Laurence from USAYes. You can follow the instructions to switch the bolt on the M4 to the left side of the receiver.
Adam from USADo you need a license for the FXM4 .22
asked Robert from United KingdomDepends on the state you live in.
Adam from USAWill the "FX Impact M3, .22" fire the 14.3 gr. Domed Pellet accurately ?
asked Scrambler82 from USAwill the .30 cal shoot sluges
asked Marvin from USACan a standard FX 3 Impact shoot slugs?
asked Tim from USAWhere can I buy this gun? What location or state
asked Jeffrey from USAWill the FX Impact 3 EVER come with a left side magazine ? Will FX ever post answers ?
asked Scrambler82 from USAIs the 600 mm barrel sufficient enough to be accurate at the 80 yard range or should I get the 700 mm barrel?
asked Tim from USAHi, I'm stuck between this rifle= (.25 calFX Royale 500) and the rifle (FX Impact X) (.25 cal) Please tell me which rifle is more accurate Which is better for distances above one hundred meters? I need your experience. Thank you
asked farhad from Iraq
This is the one. Been looking through several Air guns and this one checks all the boxes for me. When you get the M4, be sure to download the latest manual. There are some subtle diferences.
Pros
Lightweight, no electronics, quiet, very accurate
Cons
pricey but yo uget what you pay for.