Crosman Trapmaster 1100

The Crosman Trapmaster 1100 One of the more interesting guns from the venerable firm of Crosman was their Trapmaster 1100 shotgun. Powered by a pair of 12 gram CO2 cartridges and firing a reloadable .38 caliber plastic shotshell filled with #8 shot, the Trapmaster wasn’t a huge commercial success, being made only from 1968 through 1971. It was sold not as a hunting gun, but as part of suburban trapshooting set, using a hand thrower and two-part, snap-together plastic “pigeons.”

Of course since it was made, airgunsmiths have found it to be an excellent platform for customization. 1100s have been converted to bulk fill and re-valved to increase power. Changing the valve spring or making a new, lighter, valve would increase opening time and the the volume of gas released. The guns can also, with no conversion, fire a .375″ lead ball over a couple of wads. One owner, writing in (I think) the now-defunct Airgun News, claimed 100 ft-lbs of muzzle energy for his conversion. A more realistic power level of 42 ft-lbs (465fps with an 80gr ball) is claimed at this web site. Whatever the capabilities, the 1000 was one of the best made, best looking guns Crosman ever produced, with a solid heft that put you in mind of a medium caliber firearm.

I owned two at various times, back when you could buy one for $70-80. These days a good example can command as much as $300, and a complete set with trap, shells, and reloading kit can go as high as $500.

Postscript:

David Bartle very helpfully added these shell dimensions in the comments. I thought enough people would find them useful that I’ve copied them here.

Crossman Trapmaster 1100 shell dimensions:
Small outside diameter: 0.435 at top
Small outside diameter: 0.440 at bottom
Large outside diameter: 0.622 (flange)
Small diameter length: 0.682
Large diameter length: 0.930 (flange)
Inside shell diameter small end: 0.368
Inside of rear wad inserted in diameter: 0.354
Inside depth of wad from flange: 0.254
outside depth of wad from flange: 0.142
Length overall: 0.780
Measured from unused shell.

101 thoughts on “Crosman Trapmaster 1100”

  2. This is for Don’t #51 I will buy a few boxes, email or call 5625073519 or any one else that has some shells for the 1100 crossman that would be appreciated, thank you! Joel

  3. I used to have a full page add of these in an old popular mechanics magazine at the time. it also had a oicture of a foot operated launcher for indoor skeet shooting mini pigeons called ‘Mosquitoes” that could be bought for basement skeet shooting etc. looked like an old 8mm movie projector with a stack loaded feed and an air powered foot release on hose like camer shutter remote pump release

  5. I just recently acquired a Crosman Trap Master 1100 CO2 air shotgun. I need to find some 80 grain lead roundballs (.38 caliber). Also the skeet shells. I believe they are plastic. Not sure about the wads ; if I can use something else in it’s place or not. Any ideas? Steve

  7. I have owned 2 Trapmaster 1100’s for almost 50 years. My mom worked for Crosmans and bought them for my brother and me. I’d like to sell them. I have some shells too.

  10. I have a trapmaster 1100 that’s like new & complete with the trap & targets. Also have 12 boxes of the shells if anyone interested

  11. I have a like new Trapmaster 1100 with the complete trap & targets and 12 boxes of shells for sale if any interested parties.

  12. I’d like to purchase a working Tapmaster! The gun that inherited from my Dad was stolen by the local Druggies that have no clue!…

  14. Came across your post, just wanted to know if the trapmaster, trap and targets and 12 boxes still available let me know I’m very interested thanks

  15. I came across this site researching a trapmaster that has been in my gun case for years. I have never used it and would be interested in selling it. I also have 2 boxes of targets, 8 boxes of shells and a box of 60 CO2 cartridges.

  16. We just purchased a Crossman Trapmaster Model #1100 and we are wondering what is is worth. Any suggestions would be greatly appreciated. Was told it’s from 1975 – 1976

  17. I collect Crosman 1100 Trapmasters and all related items. Please let me know what you might have for sale. (888) 871-3080
    Craig

  19. I have a Trap Master 1100 for sale. It’s in OK condition but could use a good cleaning. If you are interested email me and I’ll send you some pictures. It was given to and I’m not looking to rich off it I would just like it to go to someone who will appreciate it.

  22. If anyone who posted they had a trap master for sale still has one available send me an email jeffdevisser@gmail .com I would like to purchase one.

  26. I have a Crossmen 1100 and some shells that I reload with 3/8 stainless ball bearings. It has lost its air seal, is this fixable? What size o rings will I need ? A kit maybe? I will post again after I disassemble….. thanks for any responses.

  28. Crossman Trapmaster 1100 shell dimensions:
    Small outside diameter: 0.435 at top
    Small outside diameter: 0.440 at bottom
    Large outside diameter: 0.622 (flange)
    Small diameter length: 0.682
    Large diameter length: 0.930 (flange)
    Inside shell diameter small end: 0.368
    Inside of rear wad inserted in diameter: 0.354
    Inside depth of wad from flange: 0.254
    outside depth of wad from flange: 0.142
    Length overall: 0.780
    Measured from unused shell.

  29. I am looking to purchase a Trapmaster in atleast excellent condition, Please call or email.Thank You
    Kevin 312-720-1901

  31. I am in need of ammo for my trap master will buy as many boxes as possible call me at 310 2188550

  32. Just recently bought trapmaster 1100 in mint condition.looks like it never been fired,..my question:is trapmaster worth more by having never been fired,.or does it even make a difference.?..any insight would b helpful..thanks..Johnny

  33. Just recently bought trapmaster 1100 in mint condition.looks like it never been fired,..my question:is trapmaster worth more by having never been fired,.or does it even make a difference.?..any insight would b helpful..thanks..Johnny

  34. Maybe if it was in the original box with all the paperwork and accessories, including the trap thrower. But people still buy these as shooters, not pure collectibles.

  35. Hi,Johnny again,..trapmaster is in original box w/inserts,even plastic sleeve that goes over barrel of gun in bx.also,original brochure,but no instruction manual or accessories,.kinda thinking bout selling,was wondering how much I should ask..thanks

  36. I have two Crossman guns only in excellent condition-seldom if ever shot and am willing to sell each for $100:
    1. CO2 Trap Master-Model 1100 Shotgun-
    2. Model 766 BB REPEATER/ .177 PELL— SER.#377454077.
    Contact me by email. I am in St. Paul, MN

  38. I have a very nice looking 1100. Can’t find parts or an owner’s manual. Any ideas ? Thanks, David

  39. I have a very nice model 1100. No parts manual or owner’s manual. Any ideas. Thanks, David

  40. I picked up a 1100 in pretty good shape it came with box of ammo and box of targets.
    I have no manuals for it. Dose anyone know where I can find them.
    I also might be interested in selling it all as a package?? Thanks, Jeff

  41. I would like to get at least 1 shot shell for the 1100. I am a machenest and want to make shells for my gun I just got. Used is Ok.

  42. I have a 1100 for sale…it was my father-in-laws. Gun only have never shot it due to difficulty in finding shells/cartridges. Not sure of value $200 obo.

  46. My Trapmaster 1100 is in amazing condition, and shoots as hard as the day it left the factory.
    Last month I posted an ad here in Canada to see if I might possibly sell the airgun plus one box of 100 un-used shells with 62 grains of #8 shot in each, plus a padded soft case as a package deal for $400 Cdn plus shipping within Canada, and no local pickup due to COVID-19.
    I received a couple dozen replies to that ad, with many insulting low-ball offers and other annoyances…so after 5 days of headaches I removed the ad… and decided that I wouldn’t be selling this CO2 shotgun anytime soon.

  47. I have a Crosman 1100 very good shape
    This was included in a large gun purchase. Not my area of interest so it’s for sale
    $250.00
    Email me and I will send pictures
    Located in SW Florida

  48. Billy Bob,
    I’d be interested,
    Don’t know where to find your email address.
    Mine is jasonmpgarry at gmail
    I’m located in the Tampa Bay area.

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