View Full Version : pilot acs cocking pin..

09-12-2006, 03:33 PM
it was my first game with the pilot acs 05, and 2 rounds into it. the cocking pin came off. and then the bolt kept uncocking.. so i had to carry a screw driver around with me to keep cocking it back. so what i heard was that the acs bolt needed to get broken in. so when i got home i took it out and kept pushing it in and out for a couple hours. will that solve the uncocking/cocking of the bolt problem (havent got a chance to test it yet)?? and if i buy the cocking pin replacement part, will it fall out again?

p.s. any suggestions for upgrades? right now its just a stock spyder pilot acs 05'


09-12-2006, 03:50 PM
piolts have problems with that. if i were u, id get a delrin bolt so i wouldent worry about that. much better quality then stock and it has its own cocking pin.

09-12-2006, 03:53 PM
oh.. ok thanks

09-12-2006, 04:06 PM
"piolts have problems with that. if i were u, id get a delrin bolt so i wouldent worry about that. much better quality then stock and it has its own cocking pin."

No it's not. There have been many cases of people losing the cocking pin from the ACS delrin bolt, I'm one of them. I don't know of any specific brand of aftermarket delrin bolt that doesn't use the stock cocking pin, in the top cocking configuration.

09-12-2006, 04:21 PM
We need a sticky on the cocking bolt/pin. It seems every few weeks there's a post on a new person who's "lost" their pin.


The pilot has a top cocking pin that has been known to have some problems:
1) It can be lost from the bolt during use. Sundragon Paintball is one supplier who carries replacements.
2) It can be very difficult to remove from the bolt, making bolt removal impossible. Try a few drops of marker oil around the base and pull while twisting. If needed use pliers. Remember to pull straight up and away from the bolt, never pry at an angle.
3)The pin is held in place by a set screw pushing against a spring, which pushes against a small ball bearing. This spring tension holds the pin in place by wedging the ball bearing against a groove in the bottom of the pin. You can adjust the tightness (that holds the cocking pin) by turing the set screw in or out. Remember it has loc-tite on it and may need mild heat with a hair dryer. Do not over heat a delrin bolt; it's plastic and will melt or distort shape.

09-12-2006, 09:20 PM
that still really doesnt answer the cocking/uncocking problem.. is the breaking in of the acs bolt going to solve it?

09-13-2006, 02:05 AM
Did you lube the striker and o-ring? That is the part responsible for catching the sear. (cocking/recocking) Was the marker lubed at all when you bought it? There is little to no oil on the marker internals out of the box.

09-13-2006, 01:11 PM
no i didnt. what should i use for lubing it?? i dont have any paintball lube products on me right now..

09-13-2006, 02:14 PM
Buy some paintball oil its only like $2, I woundn't recomend anything else instead.

09-13-2006, 02:48 PM
alright. thanks!