Designed and manufactured by 701 Air (Bullet Centrals in-house airgun brand) and the renowned Ernest Rowe, the 701 Air Hyperbloc100 and Valve Housing Upgrade is a precision-fit performance kit for your any FX Impact. However, M2 and older models require additional parts and a more complex installation. It is designed to enhance reliability and overall shooting efficiency. Built for shooters who want more from their setup, this anodized aluminum upgrade adds a full 44cc to bring total plenum capacity up to 100cc.
This black aluminum kit includes an upgraded valve housing and is precision machined on high-tech equipment for a refined fit and durable construction. It is designed to help marksmen achieve the same velocity with 10 to 25 bar less regulator pressure, making it a smart choice for those focused on optimizing performance from their FX Impact platform.
- Compatible with FX Impact M3 and FX Impact M4 models
- Adds 44cc for a total plenum capacity of 100cc
- Includes upgraded valve housing
- May allow the same velocity with 10 to 25 bar less regulator pressure
- Precision machined aluminum construction
- Anodized black finish
For shooters looking for a Hyperbloc100 upgrade for FX Impact M3 or M4 rifles, this kit offers a purpose-built solution for improved air management and dependable performance.
7 Reviews Hide Reviews Show Reviews
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Hyperbloc 100
Got this for my m4 and sent it to Utah Air guns to have it installed. Unfortunately they weren’t able to because the screw holes were misaligned that connect it to the rifle. They told me they had 15 other hyperblocs in stock but all of them had the same problem. really wanted this to work. Hopefully the get the machining tolerances figured out soon
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It works great.
I needed to open the mounting holes with a round file, worked great
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Hyper bloc 100
Had to wait for the 2nd Gen because I didn't see the notification in time before they sold out the first Gen, then when the second Gen came out with a 50$+ price jump I almost didn't purchase one but I'm glad i swallowed my pride because I like Ernest R as a fellow air gunner. Had absolutely no problems installing because my IQ is just a touch higher than my M4 and the HB -100, now for the good part, was able to lower the reg pressure from 155 bar to 120 bar,valve turned in two full turns, hammer spring adjustment wheel from 8 down to 4 and it's launching my hand swagged .25 cal 40.5gn.dbhp@ 1025fps. Thanks Ernest for a product that does what it's supposed to do
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HyperBloc 100
After installation I'm giving this product 2 stars because the 4 tapped holes in the top of the Hyper Bloc 100 were slightly misaligned. After 2 hours of trying everything to get all four screws started I used a 2 mm drill bit to elongate the 4 backbone holes about a half mm so I could get the screws started. They were a very tight fit at that, but I think I got them in without cross threading or stripping them out. I didn't take it apart to find out. Disappointing that I had to remove metal off the perfect backbone of my M4 for a $350 aftermarket part. In my case the second batch also has problems. Out of the thousands I've spent on aftermarket parts this is the first miss fitting thing I've purchased.
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hyperbloc100
very well made lots of thoughts went into this does what it supposed to and then some.. now awaiting another..
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hyperbloc100
very well machined plenum works as should
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hyperblock100
good product! Fast delivery!
