Totally illegal in the UK - but great fun...

JohnnySweden

JohnnySweden

Busy member
Joined
Jul 15, 2025
Messages
645
Reaction score
1,611
Location
Sweden, Scandinavia
Soon winter will come, next week darkness will fall 17.00. It will be dark while leaving for work and dark when comming back home.

A few years back I made a suburban winter gun out of a Crosman 1701 Silhouette air pistol and turned it into a bullpup.

1000015611.jpg
It just loves the £3.99 JSB Simply!

Back then I had some work in close quarter suburbia and wanted a non-takedown bullpup small enough to bring along while travelling by tram an bus/train.

1000020043.jpg
Fits like hand in a glove.

The goal was a creation small enough to fit into a 50 x 30 cm tablet case in one piece, scoped.

1000020040.jpg
Pen for size comparison.

It turned out fine, I but an IBM sticker on the softcase (since then fallen off) and nobody ever took any notice when I had it on the pull down table on the train together with my exposed laptop from a case on the floor.

1000020042.jpg
Today I shot it at home outdoors..

Accuracywise it's typically possible to shoot 10 JSB Simply within 20 mm C-T-C indoors but outdoors, as today, 25-30 mm is more common, often due to one or two flyers.

1000020045.jpg
It's a slow-shooter, starting out as an air pistol

Shooting a small, light wadcutter pellet at 30 meters outdoors is not ideal with just 6 fpe on tap...

1000020044.jpg
The naughty part, above 6 fpe!

Luckily we have a legal limit on everything air at 8 fpe ME but in the UK I presume 6.0-6.5 fpe would be a no-no... 😛
 
Last edited:
zogg364 said:
That looks ace, but you seem to be running low on pellets :LOL:
Click to expand...

I always blame my dealer for this... 😋

Usually I used JSB RS for it but I had just discovered that the less expensive Simply worked just as good..

Back then Simply was equivalent of £3.99 when RS hit £5.80.

With badly concealed irony I asked the friendly dealer if he couldn't give me a discount?

To my surprise he said;

-"If you buy my whole stock, it's £1.99 - but you must take everything and l am not gonna tell you how many I've got - is it a deal?"

😳

-"Your on!", I told him and suddenly I was the happy owner of 48 tins of JSB Simply.... 😁😁

Unfortunately the dealer had opened all the rolls so I had to carry them out to the car in reused cartons, to the amazement of my surprised wife.

-"I'll take it, they were either very rare or very cheap?", she said...
 
Last edited:
Danthepainter said:
What is its application other than taking it on a train? A Crosman PDW?
Click to expand...

It's was a quite fun build and it developed into a labour of love. As all of those it turned out hugely expensive in the end, and surpassed my initial budget by some margin... 🙄

I reckon I dropped some £1100-1400 into it... 😳

Most expensive part was the spanking new Leupold EFR 3-9/33 VX-II, around £500 of the total cost.

Nowadays I don't use it as much as it deserves since I can use any of my 2 rimfires or 2 FAC air at 50 meters in my backyard anytime and with limited time to shoot now in the fall, the 4 big ones are often prioritized.

That's actually sad since "the small one" offers impressive accuracy at shorter ranges courtesy of it's Lothar Walther match barrel and a lot of shooting amusement dispite being just 6 fpe.
 
JohnnySweden said:
I always blame my dealer for this... 😋

Usually I used JSB RS for it but I had just discovered that the less expensive Simply worked just as good..

Back then Simply was equivalent of £3.99 when RS hit £5.80.

With badly concealed irony I asked the friendly dealer if he couldn't give me a discount?

To my surprise he said;

-"If you buy my whole stock, it's £1.99 - but you must take everything and l am not gonna tell you how many I've got - is it a deal?"

😳

-"Your on!", I told him and suddenly I was the happy owner of 48 tins of JSB Simply.... 😁😁

Unfortunately the dealer had opened all the rolls so I had to carry them out to the car in reused cartons, to the amazement of my surprised wife.

-"I'll take it, they were either very rare or very cheap?", she said...
Click to expand...
My Edgun leshiy 2 likes jsb simply pellets as well thank fully as i get through a tin each time I shoot it lol .
 
Smart little build

With the demise of GMac Custom parts, here in the UK, we're now at a bit of a disadvantage in terms of availability of parts for Crosman builds
 
JohnnySweden said:
Soon winter will come, next week darkness will fall 17.00. It will be dark while leaving for work and dark when comming back home.

A few years back I made a suburban winter gun out of a Crosman 1701 Silhouette air pistol and turned it into a bullpup.

View attachment 822941
It just loves the £3.99 JSB Simply!

Back then I had some work in close quarter suburbia and wanted a non-takedown bullpup small enough to bring along while travelling by tram an bus/train.

View attachment 822944
Fits like hand in a glove.

The goal was a creation small enough to fit into a 50 x 30 cm tablet case in one piece, scoped.

View attachment 822945
Pen for size comparison.

It turned out fine, I but an IBM sticker on the softcase (since then fallen off) and nobody ever took any notice when I had it on the pull down table on the train together with my exposed laptop from a case on the floor.

View attachment 822949
Today I shot it at home outdoors..

Accuracywise it's typically possible to shoot 10 JSB Simply within 20 mm C-T-C indoors but outdoors, as today, 25-30 mm is more common, often due to one or two flyers.

View attachment 822950
It's a slow-shooter, starting out as an air pistol

Shooting a small, light wadcutter pellet at 30 meters outdoors is not ideal with just 6 fpe on tap...

View attachment 822951
The naughty part, above 6 fpe!

Luckily we have a legal limit on everything air at 8 fpe ME but in the UK I presume 6.0-6.5 fpe would be a no-no... 😛
Click to expand...
That looks good- don't tell Keanu Reeves, or he might want to borrow that for John Wick five- Good to make unique or different things. 30 Metres - that's awesome.
 
Very nice.. using a different PCP (a rifle with longer barrel) and it could be a UK legal tactical thing.
Is the Grip area "off the shelf" parts?
 
TR158 said:
Very nice, looks like quite a fun 'little' project :giggle:
Click to expand...

I got the chance to purchase the 1701P to a bargin price from a over-stocked dealer but realized that I am no pistol shooter.

Otherwise I really liked it and it was amazingly accurate... :oops:

I began thinking if it might be possible to turn it into something more rifle-like but the 1377-plastic shoulderstock seemed boring, everyone else has those.

Then a few years later I stumbled upon "Rapid-70" located in Spain, manufacturing those bullpup stocks and I put in an order..

By this, it had begun...
 
AndyZero said:
Very nice.. using a different PCP (a rifle with longer barrel) and it could be a UK legal tactical thing.
Is the Grip area "off the shelf" parts?
Click to expand...

Im not sure if you can transform an air pistol into an air rifle according to UK firearms law?

I belive the rear grip is sourced from some kind of airsoft pistol, the front one I have added myself and and its a generic one for any Picatinny rail.
 
P8X said:
Smart little build

With the demise of GMac Custom parts, here in the UK, we're now at a bit of a disadvantage in terms of availability of parts for Crosman builds
Click to expand...

True, everything bought from UK or US these days is a pain compared to the past years, before Brexit/Trump.
 
Where did you find that bag Johnny? I've been searching one for my pup but 50-60x30cm bags seem to be available nowhere.
 
You must log in or register to reply here.
Back
Top