What it works in : DM5, DM6, DM7, PM5, PM6, PM7, DMC, and Evil Minion
Weight = 10.2 grams
Operating Pressure = 130 PSI
Dwell = 4 or 5
Shot Count from a 68ci/4500psi tank = 1300-1400 shots
The bolt comes with two different back plugs, so it will fit any of the listed markers. The kit also includes a new bolt mid section, and the L7 bolt head. The idea behind the bolt is to reduce the amount of moving mass inside the marker to reduce recoil, increase efficiency, increase consistency, produce less "drop-off" at high rates of fire, and increase accuracy at high and low rates of fire. We have found the bolt to be even quieter than any other we've tested.
The TechT DM/PM L7 Bolt is newer, so it should be commonly available, both new and used.
Ok i got my bolt on friday thanks to fast shipping and must i say i was really impressed from the start just seeing how small the bolt was and everything.
So i start by taking out my old bolt (37g) and put the new bolt (10g) in, after i had the techt bolt in i realized that the old bolt fits in the the case/box the new one came in so its kinda like a storage box for the old which i will never use again.
So then i follow the directions on the techt site and get it to cycle then i go outside and put paint in it and start to shoot i then got it to cycle at what seemed a decent speed (i have no chrono on hand but i was shooting with my friend who had his gun with him also which is chronoed around 280-285 and mine was shooting the about the same speed it seemed like so i am assuming it is shooting somewhere around 270-290)
once i got that done i shot at a target about 50 feet away after emptying a full hopper there was a splat with about a 6 in diameter which was about twice as good as the old bolt so that there tells me that i have better consistency (yes i was using the same paintballs and same barrel and barrel bore when i used the techt bolt and the stock bolt) i also was astonished at how little kick it has even that i havent tuned the gun you can barely feel the kick(with paint) only if you are looking for it without paint you cannot feel any kick. and the reason i am saying you cant feel the kick is because there will always be kick in a paintball gun because there is reciprocating mass.
after shooting 2 pods and a hopper (about 480 paintballs) and a few dryfires i only lost 1200 psi on a 68 cu tank which is much better efficiency the my old bolt so by those numbers i should be getting around 1800 shots off a 68/4500 from an untuned bolt now there may be some slight error in my calculations so once i get the time to go shoot some more paint and chrono it i will tell you what i am getting for efficiency
This is a very good bolt, very little kick, very efficient, and really quite simply to tune i highly recommend this bolt for anyone who doesn't want any noticeable kick and a very effiecnt matrix
10 out of 10
Last edited on Monday, April 16th, 2007 at 6:35 pm PST
More Air Efficiency
VERY LIGHT WEIGHT
This thing is awesome!
This is definitely an upgrade you want to get if your thinking about upgrading your DM7. First thing you notice is that its tiny, the stock bolt weighs about 30 grams where as this bolt weighs about 10 grams. The air efficiency is great i find i get about 1500-1700 shots out of it before i need to refill on air. Instillation is easy, you just take apart the stock bolt and screw this one on. Also with this bolt you will be able to significantly lower your dwell. I like it alot better than the orange bolt, its smaller and more efficient.
If your looking to get a good upgrade to your DM7 definitely pick one of these up, you wont regret it.