pbReview.com / JAM Enterprises Radio Active Series (R.A.S.) Anti-Chop Bolt / JAM Enterprises Radio Active Series (R.A.S.) Anti-Chop Bolt / JAM Enterprises Radio Active Series (R.A.S.) Anti-Chop Bolt / JAM Enterprises Radio Active Series (R.A.S.) Anti-Chop Bolt / JAM Enterprises Radio Active Series (R.A.S.) Anti-Chop Bolt
JAM Enterprises Radio Active Series (R.A.S.) Anti-Chop Bolt Reviews
FBM delrin trigger
AM O-ring feed neck
it does not chop. It does not cop paint if properly broken in.
Beaks due to blow back unless a modification is done (read review).
I'll cut to the chase, this bolt will break paint in your loader but will not chop a ball in the breach. The JaM bolt is highly efective in preventing chops, but brings it's own set of problems to the table. As with other pbreview members is have experienced ball breaks due to blow back being vented up into the feed neck and into the loader. I've played with my Dwell settings and have had some minor sucsess in reducing the breaks, but breaks still occur.
The solution to the blow back issue is fairly simple. I have drilled two 1/4'' diameter holes into the neck of my eggy (the part if the neck exposed above the marker's vertical feed) and have had no problems thus far with blowback. I have not had time to extensively test this modificaton as i have only had half a case of paint through the mod and a total of 2 cases through the Jam bolt.
To the best of my experiences I have found that you must find a way to vent blow back or your marker will break paint. I am content with the preformance of the bolt (with the blow back mod) but I do not have the confidance against chops like I would with a beam break eye. until I have the confidance in the setup to tear into the trigger (which can only be gained with extensive testing) and the fact that I had to mod my loader to vent blow back, I can only give this product an 8 out of 10.
Angel LCD 2K2
Evlution II with Z board
92/4500 Hi Pressure Crossfire Stubby
14" DYE Boomstick
I followed the instruction. Over 2,000 dry firing with a swab in the barrel to break it in.
I've never seen my beloved Angel turn into a blender. The paint just splattered inside the hopper, down the feedneck, and the barrel. It just ruin a perfect day of field play. I must agree with the previous review by renrag75 because we have similar experience with this bolt. This bolt is not for me or my Angel. After using the old bolt the problem went away. Of course I have to disassemble the hopper to take the goo out and clean it.
This product may work for others but the product that I got sure didn't work as advertised. I ordered white color and I got the black bolt. Or maybe I just got a defective product,. Who Knows?
Upon first hearing the miracles of the JAM bolt, I was curious to see what all the hype was about. I did a little research and the concept of the chopless bolt was interesting to me. I made the gigantic price tag and received my bolt in a few days. I installed it with no problems and adjusted my ram for the perfect fit. I have to admit, the JAM bolt does take away the dead space in the chamber to prevent secondary paintballs from entering into the breach, but that is where the perfection stops. After the required thousand shot break in, I experienced ball breakage in the breach at least one per hopper. In fact, I thought it might be the hopper, but after switching from a Angry Halo to an Egg then to a gravity feed the results were the same. What was happening was blowback was going into the feedtube causing balls to break. The breaks were with such force that they would splatter the inside of my hoppers.
The problem is when the bolt slams forward and stops on a half fed ball, the built up air has to be expelled some where. It appears that expelled air is discharged up into the feed tube at such velocity that breaks due and will occurr.
I must admit the invention of the JAM bolt is an interesting concept, but the actual application leaves much to be desired.
Some people have had great luck with this bolt and some haven't. I have owned a DEZigns bolt made by Robert Hernandez for the past two months. In that time, I have had ZERO problems with his open faced bolt and detents. As much as the JAM bolts are for what you get I would recommend something else.
Angel Speed 05
Stops Rollback. High air flow.
Slightly inconsistent compared to softface bolt.
Bought this because I was having a tough time keeping my speed 05 from chopping due to rollback while using my Reloader B. It was pushing the ball back into the bolt and allowing 1/3 of the next ball to be squeezed into the breech and getting chopped. I adjusted my ram properly, tried lower settings on the loader and almost gave up on the Reloader B... when using slower loaders like the EGG2 or the Revvy, it worked fine.
I read about the JAM bolt and thought "why not" so I ordered one on a sunday afternoon. I received the bolt on friday. It was safely packaged. To my surprise when I opened the package it was BLACK, on the website it listed white as the only color option. Bolt was well made, delrin with a metal insert and spring. I adjusted my ram back to the middle position, installed the bolt and dropped a ball in the breech to see how it was sitting. It was perectly aligned between the bolt and the detents... it wasn't able to roll forward or backward and wasn't being squeezed... perfect so far. I followed the manufacturers directions and broke it in by firing about 1000 shots with a stick squeegee in the breech.
Now for the real test... I went into my basement and loaded up my reloader b and prepared for the worst... took a few single shots to see if it would even fire, it did, no problems... I then unleashed some speed... emptied the entire hopper without a single chop or misfeed. I loaded it up again, same thing hopper after hopper, not 1 chop, break, barrel break, anything... it was AWESOME!
Played with it this weekend, nothing but the same great results I had in the basement. The only broken paint was on the other team when I lit them up. It was a little more inconsistent over the chrony (compared to my softface) I was getting +/- 6 instead of the 2-3 I was used too... but this could have been anything (paint, temp, etc...) it was worth the trade off though. It also raised my FPS, I had to lower my miniregs pressure to chrono below 300... probably a raise of about 15-20. Not bad.
If you are experiencing any chopping issues with your Angel due to rollback, get this bolt. Trust me. It really works.
05 Speed (Blue)
Check It Clamping Feedneck
Full Freak w/ AA tip
Halo B (Z code)
Shocktech Long drop and ASA
Angel A.I.R Lp preset
Simply doesn't chop
Derlin - easy on the breech
Prevents roll back
Have to push it back to get it out of breech
this is simply the best bolt for the angel on the market. It works flawlessly. After breaking it in (sticking a barrel swab down feedneck and letting off 1000 shots to loosen spring) i had to try it out. So i took a paintball and put it half way into the breech so that, if a regular bolt were there it would chop. I shot the gun on the ball. 1st shot, didnt break. 2nd shot, didnt break. I did this about 20 times and when i took the ball out of the gun there was nothing wrong with it. (if you dont break in the bolt it leaves a slight dent). I stuck my finger down the feedneck too and nothing happened.
All in all it is exactly as described and works like a dream. BUY IT NOW! Softface bolt is awsome 2 dont get me wrong. When the ram is properly adjusted you wont chop with that either. But this bolt makes the gun not able to chop which in my mind is a deff plus just incase the eyes fail or for any other reason. Kowing your gun can not chop is a deff bonus.
10 out of 10
Last edited on Tuesday, April 5th, 2005 at 12:20 pm PST