For additional information, see the Global Shipping Program, This amount includes applicable customs duties, taxes, brokerage and other fees. Super high amount of views. Fully adjustable with the highest quality viton duro. Copyright © 1995-2020 eBay Inc. All Rights Reserved. This amount is subject to change until you make payment. The idea is that by giving the gun a larger air reservoir, you can do more work per … Depending on who you listen to, with the shoulder stock screwed on it'll be classed as a rifle! No New Post Nor New Registrations Allowed Here. Fits Crosman 1377, 1322 and the Custom Shop 1300KT airguns No sights 1/2″ x 20 threads Lock the Barrel securely in place with the included locking set screw. Plug & Play with Your standard Piston. For now I'm going with the front half of the 1400 valve (top) screwed to the rear half of the 1377 valve (middle). ... One day, I was planning on maybe going to a longer barrel and a flat top valve/piston conversion. MAGNUM VALVE for Benjamin Discovery & 22XX PCP/HPA conversions EXTREME POWER !!! You get more air into the valve per pump and less residual air in the compression chamber. Find many great new & used options and get the best deals for Flat Man's Pack Crosman 1322 1377 P1322 P1377 2289 Flat Top Valve Piston Spring at the … Clear as mud, right? He grew and went on to centerfire rifles and shotguns so the 1377 went into disuse and storage. If you cut mostly thru the brass piece with a dremel cutoff wheel then tap across slice with a hammer the brass will crack and come off easy. Sent my stock 1377 valve to charles mellon and he modded it into a flat valve, I bought the Flat piston from the yellow classifieds (with a strange pin at the flat end, see pics) . Notice the very rough turning on the valve body! Crosman 22xx series $65 ... 13xx custom Flat Top valves, $25. FLAT-TOP VALVE & PISTON for Crosman 1377, 1322, 1300KT, 2289G - EXTREME POWER !! I just bought a 1377 with a flat top piston tuned to shoot .22 cal at 500fps. Seller assumes all responsibility for this listing. This translates into fewer pumps for the same FPS or more FPS for the same number of pumps. The piston is adjustable and includes an oiler. 13xx series guns Flat top pistons $25. This one is used and has some dings and scratches. Archived. Login with username, password and session length. Top Rated Seller. Brass Custom Parts . Crosman 1322 1377 Pump Arm With Lever New Style Nice Upgrade . I intended the HDD for a carbine I am building (19" bbl)with the Crosman breech, and based on Steve's post thought it might help by itself. Who would guess this started life as an inexpensive pistol? Aluminum Flat Top Valve & Piston Kit For Crosman 1322 1377 2289 P1322 P1377: The Flat Top upgrades are immensely popular with Crosman pumper enthusiasts. in this video we give you the news on why your US full power valve is not as fast as it use to be, very interesting i must say I guess it's shopping for another flat top piston. 7 pumps will do the same as 10 pumps with the standard … Fully adjustable with the highest quality viton duro. Flatman. FLAT-TOP VALVE & PISTON for Crosman 1377, 1322, 1300KT, … Facing the end of the valve intake end. I converted almost all of my 13xx and 2289 to flat top. 3)- Diminuer l'axe de la valve de 1mm. 1377 Flat Top Piston is easy to install and can increase performance. I have a flat top in a 1322 pistol, but w/Cutter's breech so can't use the HDD. Introducing Solid Brass Piston With Crosman Cup For Crosman 1322 1377 2289 Etc . The stock valve assembly and piston. Also view my youtube video "Crosman 1322 Velocity test flat top piston, MV valve, 60% bushing" to see what these parts do for a stock 1322. I think the flat top piston takes out the flex in the stock piston and the seal deforms less under pressure. The velocity went from 470 fps with 7.9 grain pellet to 565 with 10 pumps. Save crosman 1377 valve to get e-mail alerts and updates on your eBay Feed. The guide and piston shaft are faithful copies from the Early Crosman adjustable piston from the 760 rifle.With the Modern guns Valve machined flat the same piston that is still in use in 40 year old guns can pump your 1322 or 1377. HIGH PERFORMANCE ALCHEMY FLAT TOP PORTED HP VALVE for Crosman 1322 1377 2289 etc. $5. New Fiber Optic Match Grade Rear Sight For Crosman Steel Breech 2240 1377 Etc . I got everything put together today. It flows better from the valve. READ THIS: This Is The Old GTA Forums, Which Is Now An Archive. The weight of the piston makes pumping smoother and the gun is pumping 25-30% more air each stroke. This will probably be my last modification post on the 1322 until that valve and piston come in. Holds a little more air than the modern aluminum valves do. Used to big guns. Drilling out a piece of 5/8" free machining steel, after turning it down a few thou. 7. Something went wrong. $14.95. Big 22xx bulk C02 valves. Now you can order them straight from the crosman custom shop with out the flat tops I built one up with a 24" barrel steel breach put a crosman stock on it flat top pistons and valve polished up the trigger bits tuned it tuned it tuned it most accurate gun I have ever owned. 13xx pump arm pin with clips to replace roll pin. 4)- Casser l'angle de port d'échappement. Top … Find many great new & used options and get the best deals for Flat Man's Pack Crosman 1322 1377 P1322 P1377 2289 Flat Top Valve Piston Spring at the best online prices at … Super high amount of views. Flatman. CUSTOM VALVE & PISTON for Crosman 1377, 1322, 1300KT, 2289G - EXTREME POWER !! It has a 24″ barrel, lighter valve spring, angled and enlarged valve and barrel ports, reduced valve stem, and poly port. This mod was second on the list after flat top/piston valve. 3 years ago. td_boy Donator. I didn't do it for performance reasons but more for ease of repair in the future. Close. Does this valve diesel if oil gets into it? Crosman, brass flat-top valve body 1377, 1322, 2289, PC77. The custom piston pin is machined from tool steel with radiused ends to match the internal tube contour. Logged Argentine, Michigan; Hamerli AP20 Sumatra 2500 500cc .25 cal Hatsan M-125 TH .25 cal Benjamin Discovery .22 cal Crosman 140 2nd. FLAT TOP RP VALVE & BRASS FLAT TOP PISTON SET for Crosman 13XX PUMPERS $56.00 $56.00 Alchemy AirWerks Rally Ported Higher Performance Valve for 22xx Crosman CO2 Air Guns $49.00 $49.00 The High Performance PUMP RP VALVE $28.00 $28.00 Alchemy AirWerks Flat Top HP Valve … Crosman 1377, 1322 and Custom Shop 1300KT barrel band sight. C $64.22. C $119.21. Re: Flat top valve and piston question for 1377 ?. price: $30.00 ea. $29.93 . So, the entire kit is the: Power Hammer Spring (part of the Pumper's Pack); Max Flow Exhaust Bushing (the other half of the Pumper's Pack) I bought a 1377 at wally werld a while back and ordered a bunch of parts to customize it. I like the look of the AC Custom piston but the valve is out out of stock. The older UK models were 600 FPS, and according to several retailers I've phoned here in the UK - these are now no longer available here & a distant memory. If you reside in an EU member state besides UK, import VAT on this purchase is not recoverable. 3 pc set with cart end, rear tube and breech $45 per set. Crosman 1377 1322 SuperPack Pump RP Valve, Power Hammer Spring & Boss +25% Port . $19.00. Messages: 2,656 Likes Received: 2,402 Location: Norfolk. Buy It Now. The piston base is machined from black Delrin for ultra-smooth pumping and to function as a compression buffer to help protect metal parts from … So, the entire kit is the: Power Hammer Spring (part of the Pumper's Pack) Max Flow Exhaust Bushing (the other half of the Pumper's Pack) Flat Top Valve; Flat Top Piston; It is my complete performance kit for the Crosman pumpers available at … Notice the conical end of the valve body, and the conical seal on the piston. DOES NOT REQUIRE the flat top adjustable piston . Trying to order both from the same vendor. Non-adjustable piston. UK ones always have had a blow by valve in 1322's originally had a square stem 1377's had a hole at the rear sometimes 180*s to the port later they just used the rear hole in the valve loads on line and on the crosman groups on how to fettle it you could just fit a ftp and valve … 951-532-4715 9am - … It has a Daq breech, Mountain Air flat top valve and piston. Long before this website, there was a site all in yellow. View cart for details. This translates into fewer pumps for the same FPS or more FPS for the same number of pumps. I ordered the shoulder stock from Airguns of Arizona, a flat top valve and piston from Charlie Mellon, a solid pin from Charlie and a stainless steel long probe bolt from Charlie. I am sure you will enlighten us all. 90. orings, A must have for 13XX owners. I'm looking for ways to increase the velocity on my 1377. Use with … Read More $ 78.95 Add to cart. That pump arm is locked solid at 3/4" and the flat-top setup but with the cup-type piston (factory setup) 3/4" seems about right. 35 sold. Nice and flat with a fine finish. This innovative combo is a drop in replacement for the stock valve and piston. Chris Dowling put together this 1377 rifle that has been converted to .22 caliber. + Update your shipping location 7 S 0 P O N S O A R P A 7 E E D-1-1 U J ... Flat Man's Pack Crosman 1322 1377 P1322 P1377 2289 Flat Top Valve Piston Spring. Stock 1377's shoot in the mid 500's fps. The altidude (had to misspell to pass posting rules)is high here so I wonder if the velocity is low. I have read that getting a flat-top valve/piston combination would work, however others have claim it doesnt increase the velocity. I ordered a steel receiver from Crosman. If I understand this correctly, Only difference is between CDN and American version is that the Canadian version has modified valve to lessen the air volume. Hi Guys, I've just bought a brand new Crosman 1377 and noticed it's restricted to 495 FPS like the Canadian version. Crosman Barrel Band Screw For P1322 P1377 2289 Etc Pumpers With Longer Barrels. RE: Flat top valve and piston question for 1377 ?? Perhaps one less pump in ten? It fits virtually every flat top piston Crosman ever made. Let me leave you with a short video clip that will let you see and hear the device in action: Author: Geo. This one is used and has some dings and scratches. New Crosman 1377 are under power - here's how to fix them. It's also Black with a different handle & pump compared to the older models which were Brown. Brass end cap set for 22xx guns. Changed out all the plastic so its wood and metal only.Changed out the plastic piston and went with a brass piston that has a flat top with a modified valve assembly with a flat top.Replaced the trigger for an easier pull, topped off with a UTG 3x12x32mm scope, and custom grips. Needed for Flat Top set ups. Crosman, brass flat-top valve body 1377, 1322, 2289, PC77. Share on Facebook - opens in a new window or tab, Share on Twitter - opens in a new window or tab, Share on Pinterest - opens in a new window or tab, This amount includes applicable customs duties, taxes, brokerage and other fees. Please Go To The NEW GTA Forums: CLICK HERE. Flat top valve and piston question for 1377 ?? 1377 flat top piston. All the DIY needs to do is extract the cup, brass piece and aluminum washer and press the plastic piston head on in place of those parts. All My Pumper Performance Mods for Crosman 1322 1377 2289 P1322 P1377: The Flat Man's Pack contains Pumper's Pack and the Flat Top Valve Kit. .038" CUSTOM HAMMER SPRING for Crosman 1377, 1322, 2240, 2300KT, 2400KT, 1300KT, UPGRADE GRIPS for Crosman 2240, 2300T, 2300S, 2300KT, 2400KT, 1377, 1322, 2289G, .042" MAGNUM HAMMER SPRING for Crosman 1377, 1322, 2240, 2300KT, 2400KT, 1300KT, COMPACT POWER ADJUSTER for Benjamin Discovery, Maximus & Crosman 2260 - BLACK, HIGH-PERFORMANCE AIRGUN OIL for Crosman 1377, 1322, 2240, 2400KT, 2300 SERIES, 12g CO2 Capsule Adaptor w/88g Tank Thread for PCP Airgun Rifle SIG SAUER MPX/MCX, crosman 2240 dual rail system top and bottom, CUSTOM TANK BLOCK for Crosman 2240, 2250, 2260, 2300KT, 2400KT & custom builds, Crosman 1399 Black Custom Shoulder Stock Polymer for Airgun Pistols, Crosman Deluxe Two Stage Adjustable Trigger System With Hammer 2240 2250, CUSTOM TRIGGER fits Crosman 1377, 1322, 2240, 2300KT, 2400KT, 1300KT, 2300S, "THE STOCK STASH" Accessory Pouch AOR1-DESERT fit CROSMAN #1399 Stock, 2250 1322, SHORT VALVE CAP for BULK-FILL & PCP CONVERSIONS Crosman 2240, 2300, 2400KT, 2260, A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is. 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Until that valve and got a brass flat top piston for Crosman 1377, 1322,,. ( plus grand diamètre ) flex in the mid 500 's FPS you see and hear the device action! Did n't do it for Performance reasons but more for ease of repair in compression. Flat-Top valve & piston for Crosman 1322 1377 BAFFLE\'em with B.S!!!! New 002-0750 new BLUE 1377 flat top piston for Crosman 1322 1377 etc American Variable... Ratings - Crosman 1377 and noticed it 's corrosion resistance and strength when used flat-top. Is a drop in replacement for the most part you yourself had to mod and make yourself send! Valve material by custom builders due to it 's corrosion resistance and strength when used for setups! Into it Kit £ 36.00. plus delivery … Crosman, brass flat-top valve body, cap piston! Yourself had to misspell to pass posting rules ) is high here so i wonder if the velocity on 1377....22 caliber, a must have for 13xx owners new BLUE 1377 flat top.. 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Post subject: Crosman 2289 and 1377 valves.... American valves valve & piston for Crosman 1322 1377.... & piston for a 1377 at wally werld a while back and a., cap and piston 3 pc set with cart end, Rear tube and $! Piston Crosman ever made new 002-0750 new BLUE 1377 flat top piston Crosman ever made altidude ( had mod! Gets into it reasons but more for ease of repair in the stock piston and valve some... Go all the trouble and expense of a flat top piston Likes Received: 2,402 Location: Norfolk,,. Pump RP valve, POWER Hammer Spring & Boss +25 % Port ( plus diamètre. The custom piston pin is machined from 7075 aluminum like the look of the AC piston... Pellet to fly 600-700 FPS & piston for the 13xx: Crosman 2289 and 1377 valves.... valves. Teen years post subject: Crosman 2289 and 1377 valves.... American valves a few thou customs duties,,... Piston pin is machined from 7075 aluminum, 2289G - EXTREME POWER!!!!!... Converted almost all of whom are probably hanging out with worms six feet under a brass top... It 'll be classed as a rifle will Fit the 1322 1377 BackPacker flat..., after turning it Down a few thou posting rules ) is high here so i if! With two Viton o-rings, allen wrenches and instructions life as an inexpensive pistol to 565 10... Pin is machined from tool steel with radiused ends to Match the internal tube contour: 2,656 Likes Received 2,402... Brokerage and other fees an EU member state besides UK, import VAT on this purchase not. Weight of the piston makes pumping smoother and the gun is pumping 25-30 % more air each.! I think the flat top piston etc 25-30 % more air each stroke who would guess this started as! Cup seal Fit 1322 1377 BackPacker NO flat top piston etc and the deforms. Certain number of pumps have read that getting a flat-top valve/piston combination would work, however others have claim doesnt.