I'm surprised I haven't seen any mention of the old standby that more people have probably shot than all the others combined, the Crosman 1377. So being the instigator that I am here goes.....
Barrel Cocker, cir 1982---

I've had this Crosman 1377 since the early 80's, but quit shooting it since it needed new seals. Luckily I never threw it away. I decided to try my luck at putting new seals in the gun, so a seal kit was ordered from Archer Airguns, they had the best price, plus it included two sets of seals. No problem putting in the seals, and while I was at it I decided to polish the hammer and give the trigger some attention. I doubt either did that much, but hey I like to tinker anyway. Once sealed it was shot, but having over 40 year old eyes makes seeing the sight and target difficult.........so another upgrade was needed...and the breach/bolt cover kept opening when shooting...
Hello steel breech and scope mount....I scored a steel breech with target sights on Ebay. But there was a problem with the steel breech and bolt. The breech to the original barrel was too large for the o-ring to seal. So another barrel and new trigger shoe were purchased from Alchemy Air Werks. But no it wasn't that easy, now the breech was to small for the bolt to seal. So a little work with a drill and dremel to fix that.


after all this was fixed, come to find out the gun shot to high and the rear sight ran out of adjustment....no big deal as I couldn't see the sights/target with my +40 year old eyes. Enter 4x Bushnell scope and mounts via China for about $25...I could swing that. Note still a barrel cocker at this point.

1st group with scope and stock trigger. The trigger is heavy but sort of acceptable.....well not really. Groups taken from resting gun on metal stair railing. I was happy with this group.

...but I wanted to change the gun over to a bolt cocker...so I found some drawing if the pump cylinder and modified accordingly, with a dremel, to accept a new style hammer. But buying the parts separate was more expensive than buying an adjustable hammer and spring, via Ebay of course.


cylinder slotted for bolt cocker...spacers were added to keep from screwing adjuster in too far, since this would not allow pressure to build in the cylinder.

a little silicone was placed between the transfer port and breech...

Inside the breech you can just see the pin behind the bolt for the hammer.

one major benefit with the adjustable hammer as the trigger improved dramatically!!! So I'm not sure if the super sear kit ordered from Archer will help all that much now. It will at least allow slop to be taken up in the side to side movement.

so with all this time an money...not like it really was a concern..how does it shoot.....below are 10 shot groups taken at 27 paces (30in stride BTW)

Barrel Cocker, cir 1982---

I've had this Crosman 1377 since the early 80's, but quit shooting it since it needed new seals. Luckily I never threw it away. I decided to try my luck at putting new seals in the gun, so a seal kit was ordered from Archer Airguns, they had the best price, plus it included two sets of seals. No problem putting in the seals, and while I was at it I decided to polish the hammer and give the trigger some attention. I doubt either did that much, but hey I like to tinker anyway. Once sealed it was shot, but having over 40 year old eyes makes seeing the sight and target difficult.........so another upgrade was needed...and the breach/bolt cover kept opening when shooting...
Hello steel breech and scope mount....I scored a steel breech with target sights on Ebay. But there was a problem with the steel breech and bolt. The breech to the original barrel was too large for the o-ring to seal. So another barrel and new trigger shoe were purchased from Alchemy Air Werks. But no it wasn't that easy, now the breech was to small for the bolt to seal. So a little work with a drill and dremel to fix that.


after all this was fixed, come to find out the gun shot to high and the rear sight ran out of adjustment....no big deal as I couldn't see the sights/target with my +40 year old eyes. Enter 4x Bushnell scope and mounts via China for about $25...I could swing that. Note still a barrel cocker at this point.

1st group with scope and stock trigger. The trigger is heavy but sort of acceptable.....well not really. Groups taken from resting gun on metal stair railing. I was happy with this group.

...but I wanted to change the gun over to a bolt cocker...so I found some drawing if the pump cylinder and modified accordingly, with a dremel, to accept a new style hammer. But buying the parts separate was more expensive than buying an adjustable hammer and spring, via Ebay of course.


cylinder slotted for bolt cocker...spacers were added to keep from screwing adjuster in too far, since this would not allow pressure to build in the cylinder.

a little silicone was placed between the transfer port and breech...

Inside the breech you can just see the pin behind the bolt for the hammer.

one major benefit with the adjustable hammer as the trigger improved dramatically!!! So I'm not sure if the super sear kit ordered from Archer will help all that much now. It will at least allow slop to be taken up in the side to side movement.

so with all this time an money...not like it really was a concern..how does it shoot.....below are 10 shot groups taken at 27 paces (30in stride BTW)
