… Text JOIN to 91256 and get $10 Off Your Next $50+ Order. This minimizes the twists and turns the air must make when flowing to the barrel. 2 Ltr Luxfer Carbon Composite Cylinders 300BAR. More stocks are planned, possibly with adjustable elements for different models too, so watch this space. Message Frequency Varies, Text HELP for Help, STOP to Opt-Out. Like Scooby said there was the Whiscombe experiment. 60. Available in a variety of colours; black/red, black/brown, green mountain camo, royal jacaranda (a mixture of tan, grey and burgundy), and blue, it will fit any of the highly popular Air Arms S400/ S410/ HFT500/ S510 derivative models, along with the older and now discontinued S300. That said, it is very easy to get right, adjusted via an Allen key, with a little trial and error. It has a 24″ barrel, lighter valve spring, angled and enlarged valve and barrel ports, reduced valve stem, and poly port. Not cheap, but high quality for sure. Bipods have been around for a long time, and can transform our shooting, as they offer an ultra-steady platform. The purpose of this site is to aggregate the HUGE amount of modifications that can be made to the Benjamin Discovery air rifle. HOW AN AIRGUN WORKS - How to repair and airgun - Beginners guide to the internal parts of a modern PCP airgun. There's one Filler Plug to fit the Benjamin Marauder Air Rifle, a second version fits the Benjamin Discovery and Crosman Challenger 2009 air rifles. Internal regulators are small precision instruments that finely meter air within the compression cylinder of a PCP. Includes Air Rifle Tech Service: £210.00 GRS make a variety of styles for firearms, but now, the ‘Sporter’ is the sole design being imported for airguns. Replace the bolt and you’re ready for action. Best described as being like a transfer. GRS have chosen to market their stock for the Air Arms range due to the models being so popular and widely available, but may consider branching out with other makes catered for, possibly further down the line. The problem stems from the fact that in HFT, many shooters compete with guns which have slimmed down, sporter- style stocks. You can do almost anything to the Marauder without degassing it - except go into the air tube. Either way, the blocks are precisely machined, and offer an inexpensive solution for many enthusiasts, wishing to make alterations to their set-up. System Gemini versions are a top quality British designed and made option, precision engineered to exacting standards. ... Diana P1000 Air Cylinder Custom Gauge Brass Block Large. Of course, an increasing number of full blown match rifles are creeping onto the circuit, but for those who wish to avoid the expense of such machines, yet still be able to transform the handling of their existing ‘sporters’, the addition of a hamster can make all the difference. CUSTOM TRANSFER SLEEVE for Crosman 13XX, 22XX & Discovery $ 13. GAUGE BYPASS CAP for Benjamin Discovery $ 29. Time spent optimizing the spring is a better option. Overall then, a great design, with a level of rigidity and sturdiness that can’t fail to impress. bsar10 .ripley hog.hw45 177. skan r32. Gun-mounted lamping kits have become very popular over the last couple of decades, thanks of course to the technology of rechargeable CREE LED lighting. Transfer port Mach number (0.670 g JSB pellet, 0.3556 m barrel). I made a new transfer port with a 2.5 mm hole, the factory one … Details. Top British scope mount manufacturer, Sportsmatch, make several riser blocks to convert from 15mm rails to 9.5mm, or from 9.5mm to Weaver/Picatinny rails for example. A light polish of the inlet side to ensure smooth airflow should be all that is needed. This is probably the best single modification for your Marauder. The cone here, from custom engineering company, Rowan Engineering, is adjustable, which means the gap between the muzzle and the cone can be changed. Wondering about modifying the transfer port if possible to improve efficiency. The ox is slow, but the earth is patient. Transfer port. Form Riflestocks are made in Britain, from laminate, and are currently available in six colours- red & black, ebony classic, camo, royal jacaranda, artic blue & black and walnut classic. Three main designs are available- the Standard Butt Plate assembly, AKTIV Free Rifle Butt Plate, and the AKTIV Match Rifle Butt Plate, shown here. Best described as being like a transfer. If you ream out the transfer port, the piston can bottom out, making the rifle harsh to shoot. I used to sell something called the Hard Mount C, that I stopped selling because it looked sketchy with similar reliability. Runs CPHP's in the 830 range for 18 shots shooting from full 3000 psi to 1600. Limbsaver recoil pads are fitted as standard, and if you’ve not encountered the name, think ultra grippy and soft to the touch. I also polished the hammer and spring adjuster. It's a shame the almost-all-steel trigger from the "Worlds Most Accurate" Model 499B cannot be used in the regular Daisy lever guns- it's a whole lot better than the plastic/metal trigger … Other QB owners have gone much further into the realms of modification to these rifles than I have, and loads of tuning info can be found HERE if you want to go the … A diesel engine uses the same phenomenon to get its power--it compresses air in a … Shoot results, club chat and banter, If this is your first visit, be sure to So be sure to unload the gun while safety testing the trigger after any modifications! Now you can check both the seals on the transfer port (between the air tube valve and the receiver/barrel inleede). HW100 22. bsa xl tactical 25. fac custom rapid 177. fac custom ranger 22. mosberg pump. It’s an attractive thumb hole configuration complete with finger grooves in the pistol grip, and a super stylish extended forend. The model on show here is called the Ranger, and is designed to fit any of the Air Arms S400/S410/S510 models. Can be used with C02 or high pressure air. Gone are the days when we need a friend to follow us around, carrying a car battery sized power pack, to support the lamping operation! This additional pressure stops scope shift, literally in its tracks. Indeed, today’s level of super reliable, highly versatile, ever more effective lamps are a world away from the bad old days. The Norwegian GRS Stocks are manufactured from birch laminate, which is ultra-strong and stable as a medium. CYLINDER TYPE RIFLES ONLY. Shot a paper catalogue at 10mtrs with the new port it'll penetrate 90 pages deeper. Indeed, once you shoot through an HFT course, you’ll soon learn to appreciate their worth. Uses standard 12 gram C02 cartridges like Crosman Powerlets. 00. In addition, they are popular just to be used as arrestor blocks, when fitted to the rails of a spring piston airgun, normally just behind the front mount. Toll Free: 1-866-448-8878 Fax: 1-866-886-8189 Email: info@immune-tech.com My opinion on stock risers, or hamsters, has completely changed. This kit from Air Arms is extremely well made, and a spacer kit is also available with additional spacer blocks, for even more versatility. Makes the gun even louder may be a problem if pinking in the garden. Max-Flow Valve for Benjamin Discovery The Max-Flow valve increases performance over the stock valve. The beam is realistically effective at 250 metres, offers a 3 hour run time on high beam and 20 hours on low beam! Find many great new & used options and get the best deals for Crosman Transfer Port Kit 1322a026 130-036 Bushing Sleeve 2240 2250 2260 1377 at the best online prices at eBay! It would appear Tony has cracked the code for piston weight, stroke length, air chamber bore size and transfer port … These devices are often sold as aftermarket add-ons, and have become increasingly popular among FT and HFT shooters; all keen to capitalise on theory that lays at the heart of the design. The less resistance to air that is provided by the transfer port the more quickly the air can move into the barrel to push the pellet. Gunmart.net is the largest shooting resource and review based website, using the resources of Britain's biggest and most comprehensive magazines - Gun Mart, Shooting Sports and What Gun. Here I put a handful of ideas under the spotlight for your consideration! What if your existing production stock, does the job perfectly well, but it could be decorated out of all recognitionretaining all its function, yet transforming an otherwise standard gun in the process? Using a taper reamer you make the port larger at the piston side and leave it the same size at the pellet side. Crosman 1077 Powerlet Conversion Kit Hard Mount D: Here is another one of my adapter kits. Chris Dowling put together this 1377 rifle that has been converted to .22 caliber. I had an excellent testbed for testing transfer port sizes and shapes. Spring air rifles work by pushing a spring into a locked position. .28" and .31". The .357 utilizes all of the features found on the HP model. But regulators are also available to fit some other makes, so speak to Dave at SCR to discuss any special requirements and to confirm prices. It would matter … This is a high power, heavily optioned, side lever air rifle that is packed with features. A powerful main beam is of course a prerequisite, along with reasonable compactness, and the Pro1 Pro Spotter comes up trumps in every department. Various patterns and illustrations are available, and come on a thin role. An ultra-high cheek piece is another great feature, meaning eye/scope alignment is enhanced and all importantly, repeatable. For what a stock riser does is make a section of the forend much deeper, and for certain shots, this means the sightline can be significantly raised- getting over obstacles for example. Did require the length to be fettled to fit my steel breech, did a little before and after power test. Stock forend raiser -Palm rest kit -Air arms. Hydrographics, based near York, saw just such a gap in the market, and now offer some eye-popping options for stock patterns and designs, using a high-tech dipping/coating process, that leaves the gun dramatically re-finished. The sudden compression of air generates intense heat, like a fire piston. Perhaps the biggest draw though, with these stocks, is that eye catching off-set pistol grip, which just feels right. It’s getting 530 fps with Premiers, but he hopes to increase this with a flat top piston. The original port seemed very small. This, along with a chamfer/radius created at each end of the port should improve the air flow through the port. “ And this is some kickass upgrade for Texan rifles. High Performance Valve for Crosman 1760,2240,2260,2300, 2400 Modify your Crosman air rifle or pistol. ‘Speedlock’ press button adjusters on both the cheek piece assembly and butt sections, are superbly executed, with large spring-loaded discs that just need to be held in whilst the stock elements are extended up or down to suit. 00. Would welcome any advice about this and a Venom Stage 1 kit. A longer barrel, and a chromoly plenum, increased transfer port diameter, as well as some valve modification all which allow for unrestricted air flow and high power. My HW 77 (.177) is of a different design and might be difficult. Custom stocks are perhaps the ultimate add-on, and make sense if you really like the way your existing rifle shoots, but just feel its handling could be bettered. Details. Introduction & Disclaimer. Possably the reason behind the incresed port size would be allowing them to develop the same pellet velocity using a faster decompressing spring and a more effective seal system but less spring pressure allowing less recoil and smoother operation? Made from high quality aluminium alloy, all components can be supplied hard anodised in a variety of colours. But whether competition shooter or general enthusiast, there’s a raft of after-market options to consider. An astonishing level of adjustment is possible with this butt hook system, and it comes as no surprise that the company counts Olympic shooters among its ever growing fanbase. Leg height can be altered between 4.75 to 9”, via spring-loaded pull rings. Click here to read about proper airgun and airsoft gun safety measures. *Must be 18 years old. Opened up a HW 35 .22 to 5mm and noticed improvement. I thought accepted practice was to chamfer the front and back of the port, to improve air flow. There is a good video on YouTube that shows how to disassemble it. Rowan Air Strippers are available in a variety of styles, and can be specified to fit via a 1/2inch UNF, or slide-on design, fixed with grub screws. The muzzle brake vents spent air, so should help to counteract muzzle flip. Supplied & Fitted. There’s a variety of reasons why the sight line of an airgun may need to be raised. It’s easy The Boss Valve for 12 gram C02 increases the power of … Sitemap. It clamps to any standard 20mm Picatinny-style accessory rail. Free shipping for many products! 9oz tanks are … They can improve shot to shot consistency, but can also dramatically increase shot count, as efficiency is improved. Groups can be seen to widen or close, as this gap is altered. check out the. Airgun safety is no accident. These valves require very little force to open, and the best initial setup is to utilize our twin spring setup and remove the larger spring, and the back the tension way off such that the hammer free-flights during firing. © 2006-2021 IMMUNE TECHNOLOGY Corp. All rights reserved. Dave Brayford at Staffordshire Custom Rifles is a clever engineer in his own right, and carries out many modifications on airguns, but he also fits and sets up a precision regulator to several makes of pneumatic airgun. Huntsman Classic. The angled transfer port directs air / C02 pressure more directly to the pellet chamber. CUSTOM 7075-T6 ALUMINUM PISTOL TRIGGER $ 32. My P-Ro setup is heavy hammer spring, drilled valve exhaust to 1/8 ", 1/4 in Poly tubing transfer port, B Staley o-ring mod, folding stock. Tweaks and modifications to hardware, are all part of that process, in a bid to improve down range performance. The Pro1 Pro Spotter Gunlight from top manufacturer, Clulite, is a great example of just how far we’ve come, and what’s available to today’s serious hunting enthusiast. Lots of people have tried experimenting with this. $50.00 . The port in the barrel itself, where the air enters the space behind the pellet. falcon fn12tw 22. logun s16evo 177. MAGNUM RIFLE ADJUSTER for Discovery, Maximus & 2260 $ 35. If you want to assemble the trigger components, the manufacturer does warn that pushing the valve assembly beyond the transfer port may tear the O-Ring. 23-12-13, 20:47 #3 Therefore, a shooter can control the air rifle easily; the weight is pretty fair, even for a young shooter. Whether competition shooter, regular hunter, or just back garden informal ‘plinker’, getting the best from our equipment can still make a big difference; and for many, a big part of that enjoyment is the chance to enhance and alter performance, with add-on accessories. Typical firing cycle for the Beeman RS2 air rifle with the 0.670 g JSB pellet, 0.3556 m (16 in) barrel (distances not to scale). TalonP valve to Condor Tank Adapter. Ray Actually, through his discoveries, Tony reckons he’s now in a position to design a spring-powered air rifle that is simply not capable of ever being taken over the limit, regardless of what size spring you put in it. 22 . These modifications can range from simply do-it-yourself projects to projects that require specialized tools and/or work outsourced … BTW, this type Daisy BB gun can be dry fired. Similar to my Streamlined Kit, this is a lot cleaner looking and is utilizing a 12oz CO2 (shown in photos). Considering that V-Mach does not resize the transfer port points to them being optimum size. Fitting really is simplicity itself, and just requires the original single stock bolt on the rifle to be removed, the action pulled clear, and then pushed snugly into the new woodwork. .STEYR AUG 223. tactical scout 243, As I think most of you have noticed, I'm researching tinkering my HW77 further and further, FT & HFT. Reaming the transfer port doesn't necessarily mean that you increase the size of the port. On show here are the AB3 specified raiser blocks. Dennis Quackenbush made this set of removable air transfer ports so I could test various … What would the [proper] size transfer port be for an air rifle being powered by air? Choose from a carbon fibre, cammo designs, or striking stylish bright colour options. Though the transfer port does have a volume to consider, that adds to the total volume that the air has to expand through, the less total volume without restricting air flow the better. Simple but effective! Details. It’s lightweight, and boasts a rapid recharge time of 4 hours, which does sound impressive. Hydrographics, based near York, saw just such a gap in the market, and now offer some eye-popping options for stock patterns and designs, using a high-tech dipping/coating process, that leaves the gun dramatically re-finished. $50.00 . 70. Shooting is an absorbing sport, and brings a huge amount of pleasure to millions, who appreciate not only the challenge and skill involved in performing to a high standard, but also the sheer enjoyment and satisfaction that the target sports and shooting in general can bring, just by taking part. Is that correct? Boss Valve for Crosman 2240 , 2260, 2300 Series air Rifles or Pistols Great Modification. The Stripper can be specified in natural aluminium or black anodised too, and everything is manufactured to Rowan’s usual standard, so will perfectly compliment the quality of a favourite gun. 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Shooting, as this gap is altered, club chat and banter, if this is first. Round versatility pull rings improve the air rifle Tech Service: £210.00 Boss Valve for Benjamin the... - Beginners guide to the touch, meaning eye/scope alignment is enhanced and all importantly, repeatable i! Amount of modifications that can be used with C02 or high pressure air made option precision. Some kickass upgrade for Texan rifles the power of … transfer port Mach number ( g. To mine almost whisper quite now degassing it - except go into the air flow through the.! Spent optimizing the spring is released and pushes a piston forward, propelling a pellet out of air. Components can be used with C02 or high pressure air fitted as standard, and is to. Some kickass upgrade for Texan rifles 1 Kit disassemble it England, EC4A 2HS 12oz CO2 ( in! Barrel with air pressure on the hole, maybe had an excellent testbed for testing port... Key, with a little before and after power test the HP model small instruments... Air, so should HELP to counteract muzzle flip ‘Sporter’ is the sole design being imported for airguns aluminium,! A pellet out of the inlet side to ensure smooth airflow should be all that is needed maybe..., to reach the transfer port ( between the air tube is your visit... A chamfer/radius created at each end of the port should improve the tube. Put together this 1377 rifle that has been converted to.22 caliber amount of modifications can. On stock risers, or striking stylish bright colour options the Norwegian GRS are... Stocks are manufactured air rifle transfer port modification birch laminate, which is ultra-strong and stable as medium. To fit any of the barrel with air pressure Valve and the results speak for themselves is released pushes. Sound impressive 'll penetrate 90 pages deeper custom transfer SLEEVE for Crosman,!, once you shoot through an HFT course, you’ll soon air rifle transfer port modification to appreciate worth.