Or pay in 3 installments of €38,34 
FX Impact M3 Power Block Kit FX20845
Original FX Impact Rear Power Block upgrade set will bring your FX Impact to a total new level of power.
- High quality products.
- Worldwide shipping.
- Order easily and secure online.
- Multiple shipping options available.
- Our customers rate us 9.9/10.
- 25+ years of experience.
FX Impact M3 Rear Power Block Upgrade
This Power Block kit for the FX Impact M3 is an upgrade which provides improved valve flow and delivers more power, great for use with heavier slugs on long distances.
All M3’s produced in 2021 do not yet have a Power Block installed. However, M3’s produced in 2022 are equipped with one, but are not branded accordingly.
The Power Block Kit FX Impact M3 is supplied including the parts listed below:
• 10337: Valvetube Power Plenum Impact M3
• 20671: Valvehouse, Impact, Big Plenum
• 5154: O-ring 16,0 x 2,0 NBR 90
• 20670U: Rear Block Impact Power 2022 without serial number
• 19718: O-ring 14×1,5 NBR 70
• 5110: Rubberball 4,75 NBR75
Please note:
If you own a sub 12 ftlbs 16 Joule FX Impact MKI, MKII or M3: This FX Impact M3 kit does not contain all necessary parts to convert your rifle. Please select the Power Block Kit FX Impact MKI & MKII FX20839 for this conversion.
Specifications
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Shipping and Payment
We ship your items well packed for safe and undamaged arrival in the country of destination with tracked priority shipping (unless this is specifically stated otherwise). As a buyer, you are responsible for checking that this product is legal according to your local laws and regulations. Unless specifically stated otherwise, all our Air Guns, Air Gun Parts and Accessories are supplied in/for high-power versions.
You can pay safely and secure online by means of all major payment providers, like paypal and credit cards companies.
7 reviews for FX Impact M3 Power Block Kit FX20845
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lrrp.airgunner –
I own a stock FX Impact Mk1. I went to the Huma Air website, and I found all the accessories that I need for my project, from a Power kit that I need to upgrade my MK1 to a Hybrid M3 that’s how it is named now. I saw all the upgrades for the conversion, such as High Flow V2 Dual Hole Transfer Port For FX Impact, FX Impact M3 Ambidextrous Side Lever Kit (FX20602), Power Block Kit FX Impact MKI & MKII FX20839, High Flow Slug- and Pellet Probe For FX Impact, plus Huma-Air XL Magazine For FX Impact – .22 / 5,5 × 2 and you are gonna need this too: FX Impact Side Shot High Capacity Magazine Conversion Kit. or use your old magazines if you prefer they still fit right but less shot capacity.
Now, it has more power. I assemble the new parts by myself, and it works great! Note: Once you add the new power block kit, your MK1 original barrels will not fit properly, but that’s fine because I updated everything that was on my list, too. I want to have the new M3 barrels to make it worth it. The M3 barrels fit perfectly due to the new power block, and once you start shooting, you will feel the power of the MK1 as a completely new FX Impact. I was amazed with a WoW! Tip: Once the Impact MK1 is disassembled, do an internal cleaning for better functionality with the new parts. Remember, from now on, use the M3 Barrels and any other accessory that you may need to have your new Impacdt MK1/M3. If you have any doubts, contact Huma-Air, and they will answer your questions. Once you have completed your MK1 upgrading project, You will be a Happy Owner. Thank you to the Huma Air Team for answering questions and fast shipping! Bravo Zulu to Huma Air!
Nigel Duvall (verified owner) –
Huma, what a great company.
They have literally everything that I need to bring my rifle to the next level.
They make my buying experience very easy and they have good knowledge of their products.
I will continue to buy my products from them.
Great service and great products.
Paulau (verified owner) –
Efficace, pour exemple, m’a permis de baisser la pression de mon ImpactMK2 .25 Power Plenum de 10Bars pour des performances similaires.
NB: l’augmentation de puissance est plus importante avec le canon de 600mm qu’avec le canon de 700mm..
Emil Angelov (verified owner) –
Fast shipping, quality products
Jeffery Doubler (verified owner) –
Perfect job took a while to arrive but we’ll worth it huma is the place to get any fx bit no fuss and keeped up to date where your order is
Robin (verified owner) –
Verry happy with the delivery. I can only advise people to order with huma they have great products for pcp shooters !!
About the powerblock i must say that it works great combined with the tungsten hammer, hammer valve spring…
I now push 32 grainers up to 325m/s with the 700mm .22 sniper.
Thanks huma.
Adrian (verified owner) –
Awesome product! Beautifully finished. Had to wait several rounds, this time I ordered within 1 minute of receiving the back in stock notification and was a speedy delivery.