New 2100

[GreenDragon]

I bought my first 2100 when I was 12 and had it for 30 years.  Loved that thing.  The trauma of it's tragic loss is what brought me to this forum and got me into the hobby.  Anyway, couldn't pass up the $46 deal on Amazon yesterday so a new 2100 Classic is on it's way to my humble abode tomorrow.   

The Plan is to oil the pump and take a few test shots to ensure all is in working order.  Then will completely tear down and do some easy mods such as polish the lead in, polish, align, and seal the transfer port, seal the barrel at the breach, tape mods for the barrel, touch up the crown if needed, etc. 

I hear that they still haven't put an O-ring on the bolt probe.  Anyone know how to DIY one or if there is an aftermarket available?

Also would eventually like to get an LDC and wood stock set for it.  Has anyone done something similar?  Pics!

More to come....  Steve

[Ultramarine]

About the LDC : I've installed a Diana LDC on my Crosman 2100 a few years ago. It's really efficient and allows you to keep the foresight on. The barrel diameter (16mm) fits exactly the silencer's bore: https://www.versandhaus-schneider.de/product_info.php/products_id/6956. It looks like Versandhaus Schneider can ship to the US. There's also a french airgun shop that sells this item, but it's more expensive and he probably doesn't export abroad.

Pics here attached.

I also found  someone in UK that sells an attractive adapter which seems specially designed for the Crosman 2100 : http://www.ebay.ie/itm/-/262329025331?. I never got in touch with him. It's obviously cheaper but you got to find an LDC...

[K.O.]

I have not done it yet but one member shortened the breech end of the barrel and then trapped an oring in the breech... Big Bore Bart used the same concept but has a lathe so he counter bored the barrel a bit to hold the oring instead of shortening the barrel...

[bantam5s]

I haven't done any of this, but mine shoots great with nothing more than a taped barrel and lightened trigger spring. The sights on mine are also not stock but that's only because I don't like it watch a scope on top.

[Tack Driver 10]

There's lots that can be done to the 2100.

Most of these guns are very accurate right out of the box.

Mine has a FT piston and valve, brass barrel band, valve mods, O-ringed barrel, 766 pump link, brass probe, lightened trigger, wood furniture etc.

With 7.9 CPHPS:
05 pumps 635 FPS, 07 FPE
07 pumps 730 FPS, 09 FPE
10 pumps 820 FPS, 12 FPE
15 pumps 920 FPS, 15 FPE

A new stock 2100 with 10 pumps=625 FPS

[ped]

I have a couple of ldc adapters for 2100/2200/1077and 766 provided they have the straight barrel housing and i'll ship to the US

[Grampy ray]

I got a new one this summer .out of the box it is a tack driver.even with a crappy trigger.i am reluctant to tear it down and tune it.it just shoots that good.the tree rats that took dirt naps would agree with that.

[mav72]

Sorry so late. I phone pics too big. 

Here's my older version black on black AM77. It was the first ever airgun I modded. It has a few goodies including some old parts from and exploded Crosman 766, sealed up, and polished trigger.

[Tack Driver 10]

I bought my first 2100 when I was 12 and had it for 30 years.  Loved that thing.  The trauma of it's tragic loss is what brought me to this forum and got me into the hobby.  Anyway, couldn't pass up the $46 deal on Amazon yesterday so a new 2100 Classic is on it's way to my humble abode tomorrow.   

The Plan is to oil the pump and take a few test shots to ensure all is in working order.  Then will completely tear down and do some easy mods such as polish the lead in, polish, align, and seal the transfer port, seal the barrel at the breach, tape mods for the barrel, touch up the crown if needed, etc. 

One of the biggest differences between the older 2100s and the new ones is the older ones had a 2 piece piston.
The new guns have a plastic piston that bends and makes it impossible to get high performance so you
might consider replacing it with a 2 piece or adjustable piston.

Here's the older 2 piece piston and the FT piston in my gun.

[bantam5s]

I got a new one this summer .out of the box it is a tack driver.even with a crappy trigger.i am reluctant to tear it down and tune it.it just shoots that good.the tree rats that took dirt naps would agree with that.

Mine was really accurate out of the box as well.

[GreenDragon]

First Update

Well, the 2100 arrived on time Friday afternoon, and I was able to take a few test shots with it to make sure all was in order.  I then took it to the garage and cleaned the barrel (which was surprisingly not very dirty at all).  Unfortunately, between work and rain I haven't had a chance to really put it through it's paces yet, but here are a few of my initial thoughts and observations:

1.  Ahhh nostalgia!  It sounds exactly the same as my original.  As anyone who's every had both this and a Daisy 880, you know they each have a distinctive sound on firing, and neither has changed in 30+ years in how they sound.

2. Fit and Finish:  Remarkably tight and solid.  Honestly, it's better out of the box than my original was.  Only the barrel shroud has a slight wiggle to it.

3. Sights:  Worse than the original, not that those were great.  Just too "fat" to give a lot of accuracy.  Fine for aluminum cans, but not for hunting IMHO.  Trying to decide to replace them with aftermarkets or just scope it for long term use.  For accuracy testing later this week I have a UTG 4X32 hunter scope I'll put on later this week.

4. Oddities:  Original 2100 max was 10 pumps, while the new version says the max is 8 pumps.  I guess the new piston has a different compression ratio.  Also, the manual says to use RMCOIL oil (which is made for springers), but the website suggests PellGun oil (made for pumpers & CO2) as a recommended accessory.  Hmmmm

Next I'm going to pop the UTG scope on and do some accuracy testing to see if it warrants a tear-down or not.  Stay tuned!  Same Bat Time, Same Bat channel

[mav72]

1. That familiar "clack!" when pumping. I know what you mean.

2. Some tape will fix that barrel wiggle. Ive made spacers/stabilizers out of wood, or if you have the tools, out of plastic. You can find and buy some if you want to spend more money.

3. The rear sight looks the same but that thick tru-glow front sight is pretty thick. I don't mind so much.  If that small, I sort of just imagine and dance my target on top, closest to the center of the front sight.

4. I think by the time you get to 8 pumps, the plastic piston is probably flexing too much to efficiently add more air. My AM77 came with one but I replaced it with a 2 piece plastic/metal one that I had laying around because Im a hoarder. Lol  Crosman doesnt want to confuse the beginner springer people so they say to use the RMCOIL to be safe. The thing is, I hear that stuff detonates in a springer too. Stick to Pellgun Oil or some other close "Non Detergent" oil in your pumpers and co2 guns. I alway oil mine after use to preven the seals from drying out.

Lol I watched that show the other day for nostalgia sake. Everythings "bat" from the ladder to a funnel. So hilarious now but logic was spot on as a s a kid, well, because it's Batman's stuff. Lol  Why wouldn't they be labeled that?

[DanD]

One of the biggest differences between the older 2100s and the new ones is the older ones had a 2 piece piston.
The new guns have a plastic piston that bends and makes it impossible to get high performance so you
might consider replacing it with a 2 piece or adjustable piston.

Do you think there is any point in "stuffing" the plastic portion of the old 2 piece piston?

[Tack Driver 10]

One of the biggest differences between the older 2100s and the new ones is the older ones had a 2 piece piston.
The new guns have a plastic piston that bends and makes it impossible to get high performance so you
might consider replacing it with a 2 piece or adjustable piston.

Do you think there is any point in "stuffing" the plastic portion of the old 2 piece piston?

What you really need is an adjustable FT piston and valve.
An adjustable pump cup piston is also a good alternative.
The key word here is "adjustable".

Here's a piston I made today for a 2200 Magnum basket case that I'm getting later this week.
The prototype is made from Delrin and the final piston is brass.
Made it to look like a pellet (obviously).
Also for the gear heads out there, a piston made to look like an engine piston.

[bantam5s]

First Update

Well, the 2100 arrived on time Friday afternoon, and I was able to take a few test shots with it to make sure all was in order.  I then took it to the garage and cleaned the barrel (which was surprisingly not very dirty at all).  Unfortunately, between work and rain I haven't had a chance to really put it through it's paces yet, but here are a few of my initial thoughts and observations:

1.  Ahhh nostalgia!  It sounds exactly the same as my original.  As anyone who's every had both this and a Daisy 880, you know they each have a distinctive sound on firing, and neither has changed in 30+ years in how they sound.

2. Fit and Finish:  Remarkably tight and solid.  Honestly, it's better out of the box than my original was.  Only the barrel shroud has a slight wiggle to it.

3. Sights:  Worse than the original, not that those were great.  Just too "fat" to give a lot of accuracy.  Fine for aluminum cans, but not for hunting IMHO.  Trying to decide to replace them with aftermarkets or just scope it for long term use.  For accuracy testing later this week I have a UTG 4X32 hunter scope I'll put on later this week.

4. Oddities:  Original 2100 max was 10 pumps, while the new version says the max is 8 pumps.  I guess the new piston has a different compression ratio.  Also, the manual says to use RMCOIL oil (which is made for springers), but the website suggests PellGun oil (made for pumpers & CO2) as a recommended accessory.  Hmmmm

Next I'm going to pop the UTG scope on and do some accuracy testing to see if it warrants a tear-down or not.  Stay tuned!  Same Bat Time, Same Bat channel

That's strange, I've had mine about 2 years and it was listed as a max of 10 pumps.
I wonder what has changed in 2 years ?
Did you get the 2100b with the checkered woodgrain stocks, or  2100x with plain brown textured stocks ?
Maybe they changed more than just the stocks, and if so I'm sure glad I got mine when I did.

[GreenDragon]

Amazon just says it’s a 2100 classic. It has a smooth brown stock. I’ll post some pics in the morning.

I did mount the scope and tried out some pellets. I was a little surprised at the wide patterns I initially got, but then I got 4 pellets in the same hole at 20’.  Those were the CPUM’s.  Of course it’s still leading in, so darn, I just need to shoot it some more. 

[GreenDragon]

Tack Driver 10 that is beautiful work!  Do you take orders???

Here are the pics from last night.  It was raining and just plain nasty outside so I had to do everything in the garage which has bad lighting.  So apologies if the colors look a little "off". 

Here is a snap of the stock and nameplate, one of the front sight alongside the aftermarkets I plan on replacing them with, and a picture of my initial pellet selection test.  4 pellets of each type just to start narrowing the preferences down.

[bantam5s]

Tack Driver 10 that is beautiful work!  Do you take orders???

Here are the pics from last night.  It was raining and just plain nasty outside so I had to do everything in the garage which has bad lighting.  So apologies if the colors look a little "off". 

Here is a snap of the stock and nameplate, one of the front sight alongside the aftermarkets I plan on replacing them with, and a picture of my initial pellet selection test.  4 pellets of each type just to start narrowing the preferences down.

Hmm, well I guess they must've changed something inside the guns as well.

Btw how do you plan to mount those aftermarket shotgun sights ?

[Tack Driver 10]

Tack Driver 10 that is beautiful work!  Do you take orders???

Here are the pics from last night.  It was raining and just plain nasty outside so I had to do everything in the garage which has bad lighting.  So apologies if the colors look a little "off". 

Here is a snap of the stock and nameplate, one of the front sight alongside the aftermarkets I plan on replacing them with, and a picture of my initial pellet selection test.  4 pellets of each type just to start narrowing the preferences down.

Thanks for the compliment. I don't mind taking on small projects just not looking to start a second career.
I have a lot of 2100 parts so when you get ready to mod your gun drop me a line.

That 2100 you have is very different than mine I bought in 2012. Even the receiver casting is different.
Looks like Crosman may have made changes when they came out with the Legacy 1000 which is
a not so fantastic plastic version of the 2100.

Might want to return it and get a new or used 2100B or better yet, 766 and mod it.
Contrary to what some say, you can get some good deals on EBay.
Just bought a basket case 2200 Magnum for $75 delivered.
That's my next project gun.

A 760 with a 2100 tube and Challenger (LW) barrel makes a nice gun.
The 78-80 versions are the best IMO.
https://www.gatewaytoairguns.org/GTA/index.php?topic=135148.0

Here's the finished 2200 Magnum piston along with 2 old school pistons.
It can be adjusted in the gun by knocking off the nut with a pin punch
and then rotating the piston via the holes in the skirt.

[GreenDragon]

Hi David,

The rear sight can use the same holes as the stock sight.  The front I'll use a dab of aquarium grade silicone adhesive / sealant.  Worked well when I added them to one of my break barrels.  Or I may just leave the scope on - Haven't decided yet

Steve