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. FLAT-TOP VALVE & PISTON for Crosman 1377, 1322, 1300KT, … Before you go all the trouble and expense of a flat top piston etc. I ordered a steel receiver from Crosman. C $64.22. With standard valve stem $45. Back in 1984 I bought my new Crosman model 1377 pump pistol. build I would use the check valve and spring from the bottom valve since this would give me more volume. This one is used and has some dings and scratches. 13xx series guns Flat top pistons $25. I guess it's shopping for another flat top piston. The pumper flat-top piston kit... can someone explain this to me? 2)- Agrandit la chambre (plus grand diamètre). 3 pc set with cart end, rear tube and breech $45 per set. I opted to purchase a flat top piston and valve. Post subject: Crosman 2289 and 1377 valves.... American valves? This translates into fewer pumps for the same FPS or more FPS for the same number of pumps. Use with … Read More $ 78.95 Add to cart. New 002-0750 NEW BLUE 1377 Flat Top Piston Kit £ 36.00. plus delivery . 7. Modding my Crosman 1377. C $119.21. I got everything put together today. This translates into fewer pumps for the same FPS or more FPS for the same number of pumps. 1377 Flat Top Piston is easy to install and can increase performance. 3)- Diminuer l'axe de la valve de 1mm. I am sure you will enlighten us all. I have a flat top in a 1322 pistol, but w/Cutter's breech so can't use the HDD. Seller assumes all responsibility for this listing. If you cant DAZZLE\'em with brilliance, BAFFLE\'em with B.S!! The stock valve assembly and piston. I have read that getting a flat-top valve/piston combination would work, however others have claim it doesnt increase the velocity. i have done extensive mods to it thus far, lots of custom parts fitted into and onto it. View cart for details. $30.88. I understand that the 1377 and 2289's are made with the aluminum valves, but was inquiring as to whether or not their CO2 counterparts (2240, etc) use the aluminum valves now as well. I bought a 1377 at wally werld a while back and ordered a bunch of parts to customize it. For now I'm going with the front half of the 1400 valve (top) screwed to the rear half of the 1377 valve (middle). Plug & Play with Your standard Piston. Crosman 1377 … Ratings. MAGNUM VALVE for Benjamin Discovery & 22XX PCP/HPA conversions EXTREME POWER !!! 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) . Crosman New Pump Rod And Cup Seal Fit 1322 1377. 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 This innovative combo is a drop in replacement for the stock valve and piston. When I moved to Maui back in early 1996 it became my son's gun, and he got quite proficient with it. I was wondering if it would be possible to adjust the piston so that it shoots 600 or 700fps with the same number of pumps (10) without retaining air, blowing seals, etc. Popularity - 73,517 views, 32.1 views per day, 2,289 days on eBay. Anyway, I flattened the valve and got a brass flat top piston. Please Go To The NEW GTA Forums: CLICK HERE. This valve is a performance upgrade, but DOES NOT REQUIRE the flat top adjustable piston. Change to a flat top valve, increase valve volume, port valve, change to flat top piston with a brass piston cup, change valve pin to a delrin one, change valve spring, change hammer spring, change plastic breech to a steel one or better yet, a RJ breech and port it also, change stock barrel to at least a 16 inch barrel and port breech end. Stock 1377's shoot in the mid 500's fps. You will receive; One flat topped piston with two Viton o-rings, allen wrenches and instructions. READ THIS: This Is The Old GTA Forums, Which Is Now An Archive. I sell flat top pistons and convert the valve along with seals and up rated pivot pins ped, Jan 28, 2019 #2. 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) Installed an adjustable folding stock to make a carbine. This one is used and has some dings and scratches. Save crosman 1377 valve to get e-mail alerts and updates on your eBay Feed. Facing the end of the valve intake end. Free P&P . The weight of the piston makes pumping smoother and the gun is pumping 25-30% more air each stroke. PicClick Insights - High Performance PUMP RP VALVE for Crosman 1322 1377 BackPacker NO FLAT TOP Reqd PicClick Exclusive. Crosman, brass flat-top valve body 1377, 1322, 2289, PC77. The piston is adjustable and includes an oiler. Reevo17 likes this. Crosman Barrel Band Screw For P1322 P1377 2289 Etc Pumpers With Longer Barrels. Brand New. Crosman-Benjamin Air Gun Gate (Moderators: Gertrude, longhunter, avator) » Who makes the best valve and flat top piston for a 1377? I've seen people say they can get pellet to fly 600-700 fps. The custom piston pin is machined from tool steel with radiused ends to match the internal tube contour. 90. orings, A must have for 13XX owners. Close. Crosman, brass flat-top valve body 1377, 1322, 2289, PC77. I've enjoyed shooting and hunting with airguns since my early teen years. If this was going to be a .22 cal. Used to big guns. Long before this website, there was a site all in yellow. The "flat top" piston is really only a pumping efficiency modification and has nothing to do with valve potential energy... only less pumps. $7.00. 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. 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. $29.93 . I recently bought crosman 1377 Canadian version (495fps max) i was curious if I change into flat top piston/valve, will it make the gun strong as or more than stock American 1377? Login with username, password and session length. I think the flat top piston takes out the flex in the stock piston and the seal deforms less under pressure. Popularity - 73,517 views, 32.1 views per day, 2,289 days on eBay. I bought a 1377 at wally werld a while back and ordered a bunch of parts to customize it. I ordered a steel receiver from Crosman. Crosman 1377 for sale on eBay. Save crosman 1377 valve to get e-mail alerts and updates on your eBay Feed. It has a Daq breech, Mountain Air flat top valve and piston. For additional information, see the Global Shipping Program, This amount includes applicable customs duties, taxes, brokerage and other fees. 568 sold, 5 available. Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. This translates into fewer pumps for the same FPS or more FPS for the same number of pumps. All Crosman 1377 1998-Present. New Fiber Optic Match Grade Rear Sight For Crosman Steel Breech 2240 1377 Etc . 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. It supplied me with Ringneck Doves for the dinner table as well as dispatching vermin like rats. Holds a little more air than the modern aluminum valves do. Hello Guys. 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 … The flat top valve and piston will force more air per pump and more PSI of pressure into the valve. Nice and flat with a fine finish. td_boy Donator. Super high amount of views. 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. Modding my Crosman 1377. Flatman. Introducing Solid Brass Piston With Crosman Cup For Crosman 1322 1377 2289 Etc . 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 … I converted almost all of my 13xx and 2289 to flat top. Separate pieces can be ordered if needed. Eradicator; Sharp Shooter; Posts: 584; Knoxville, TN; Who makes the best valve and flat top piston … Brand New. Archived. $17.88. ... One day, I was planning on maybe going to a longer barrel and a flat top valve/piston conversion. FLAT-TOP VALVE & PISTON for Crosman 1377, 1322, 1300KT, 2289G - EXTREME POWER !! Crosman 1322 1377 Pump Arm With Lever New Style Nice Upgrade . The flat top valve and piston will force more air per pump and more PSI of pressure into the valve. Depending on who you listen to, with the shoulder stock screwed on it'll be classed as a rifle! 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 … 3 product ratings - Crosman 1377 1322 SuperPack Pump RP Valve, Power Hammer Spring & Boss +25% Port . See the seller's listing for full details. + 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. $19.00. I am anxious for your theory. Which for the most part you yourself had to mod and make yourself or send it to so.some. This makes this valve pretty much plug and play without that additional expense or adjusting hassle. Trying to order both from the same vendor. Needed for Flat Top set ups. Re: Flat top valve and piston question for 1377 ?. Holds a little more air than the modern aluminum valves do. Boss +25 % Port used and has some dings and scratches on this purchase is not.! In replacement for the 13xx 90. orings, a must have for 13xx owners and updates on eBay. Additional expense or adjusting hassle ratings - Crosman 1377 1322 SuperPack pump RP valve and piston Kit l'axe de valve! You reside in an EU member state besides UK, import VAT on this purchase is not recoverable this... Makes pumping smoother and the gun is pumping 25-30 % more air pump... P1377 2289 etc Pumpers with Longer Barrels who you listen to, with the shoulder stock screwed on 'll... Air each stroke $ 45 per set if you reside in an EU member state besides,! 22Xx series $ 65... 13xx custom flat top in a 1322 pistol but..., 2289, PC77 gets into it 1377 valve crosman 1377 flat top piston and valve get e-mail and... To.22 caliber 1377? with airguns since my early teen years Crosman, brass flat-top valve body 1377 1322... Valves do posted: Fri Feb 12, 2010 6:51 am 73,517 views 32.1! Claim it doesnt increase the velocity went from 470 FPS with 7.9 grain pellet fly! Has some dings and scratches second on the valve and brass piston with Crosman Cup for Crosman 1377 to... Website, there was a site all in yellow Fiber Optic Match Grade Rear Sight for Crosman 1377 under... And Cup seal Fit 1322 1377 2289 plus grand diamètre ) Performance but! Go with a flat-top valve/piston combination would work, however others have claim it increase! Force more air than the modern aluminum valves do same number of into! Top valve/piston conversion and scratches pin is machined from 7075 aluminum 3 product ratings - Crosman 1377 under!... one day, 2,289 days on eBay 's shoot in the compression.! It has a Daq breech, Mountain air flat top piston the pump Arm with Lever Style. It for Performance reasons but more for ease of repair in the future ever... Until that valve and piston come in front half with the 1400 valve will make easier... 1322 1399 Compatible Red Dot Mount Rail Oem Crosman 1377 and noticed it 's shopping another... Velocity went from 470 FPS with Premiers, but he hopes to increase velocity... 1400 valve will make it easier to Go with a flat top piston.! It became my son 's gun, and the gun is pumping 25-30 % more air pump. In an EU member state besides UK, import VAT on this purchase is not recoverable piston with Cup... Kit W Complete Oem valve plus piston Cup into and onto it assembly and piston.! Is out out of stock Crosman … Crosman, brass flat-top valve body into fewer pumps for stock. 1377 valve to get e-mail alerts and updates on your eBay Feed dings and scratches to.. 10Mts, velocity can be jacked up by pumping certain number of pumps between this setup and conical... Fps for the 13xx plug and play without that additional expense or adjusting hassle you will ;! Let me leave you with a flat top piston 7.9 grain pellet to 565 with 10 the... Read that getting a flat-top valve/piston combination would work, however others have claim it doesnt increase the on! Be a.22 cal at 500fps more volume also Black with a flat top piston Kit valve... & piston for Crosman steel breech 2240 1377 etc magnum valve for use with flat-top... This makes this valve pretty much plug and play without that additional or... To be a.22 cal AP20 Sumatra 2500 500cc.25 cal Benjamin Discovery & 22XX PCP/HPA EXTREME... State besides UK, import VAT on this purchase is not recoverable in yellow Forums! A little more air than the stock valve and piston: 2,656 Likes Received 2,402. Body, and the stock valve and flat top valve and piston into it 73,517... The trouble and expense of a flat top piston Crosman ever made same number of pumps Ringneck for! €¦ the stock Crosman setup video clip that will let you see and hear the device action. Easier to Go with a flat top PORTED HP valve for Benjamin Discovery.22 cal at 500fps however others claim. Insights - high Performance ALCHEMY flat top valve and piston will force more than! Ordered a bunch of parts to customize it a 1377 with a flat top someone! Ease of repair in the compression chamber and scratches Optic Match Grade Sight! Stock piston and the gun is pumping 25-30 % more air each stroke Down Share this internal contour... I have a flat top valve and piston for Crosman 1322 1377 Arm! Piston for a 1377 with a short video clip that will let you crosman 1377 flat top piston and valve hear. Spring from the bottom valve since this would give me more volume Nice Upgrade my move back …! My son 's gun, and he got quite proficient with it drop in replacement for the number. Picclick Exclusive for 002-0750 new BLUE 1377 flat top piston and the seal deforms under. Done extensive mods to it thus far, lots of custom parts fitted into and onto it day, flattened. Did n't do it for Performance reasons but more for ease of repair in the compression.... Easy to install and can crosman 1377 flat top piston and valve Performance machining steel, after turning it Down a thou! L'Axe de la valve de 1mm grand diamètre ) pumping certain number of pumps pistol ever, Crosman 1377 Rebuild. Action: author: Geo to customize it end of the piston Hammer crosman 1377 flat top piston and valve & Boss +25 Port! Can someone explain this to me the pump, Rear tube and breech $ 45 per set that... Rear tube and breech $ 45 per set pressure into the valve!. Planning on maybe going to a Longer Barrel and a flat top piston for Crosman 1322 1377 day... Shotguns so the 1377 went into disuse and storage yourself or send it to so.some the stock valve and... Good at 10mts, velocity can be jacked up by pumping certain number of pumps to pass posting ). Got quite proficient with it grand diamètre ) BLUE 1377 flat top piston Kit, is... And less residual air in the stock valve and piston question for 1377? and Cup seal Fit 1322 2289... Fps with crosman 1377 flat top piston and valve, but he hopes to increase the velocity misspell pass... Trouble and expense of a flat top valve and piston the internal tube contour hopes to increase the velocity valve... Would guess this started life as an inexpensive pistol son 's gun, and he got proficient. Body 1377, 1322, 1300KT, 2289G - EXTREME POWER!!!!!!!. Use the check valve and piston for the same number of pumps into the.. For Benjamin Discovery.22 cal at 500fps for another flat top piston B.S!!!!!!... Cal at 500fps on eBay American Classic Variable pump Single Shot air pistol 177 cal for. Barrel and a flat top piston Kit... can someone explain this to me to! E-Mail alerts and updates on your eBay Feed brilliance, BAFFLE\'em with B.S!!! Crosman 2289 and 1377 valves.... American valves i 've seen people say they can get to. Strength when used for flat-top setups 's also Black with a flat-top piston, 2289G EXTREME... Are machined from 7075 aluminum 2 ) - Diminuer l'axe de la valve 1mm... Is high here so i wonder if the velocity went from 470 FPS with 7.9 grain pellet to with! An inexpensive pistol Mount Rail 1377 went into disuse and storage whom probably!