The ULE Trigger Kit (ULT) is a drop-in on/off assembly that is designed to turn the RTP's 3lb. trigger pull into a 15oz. pull. It also features the ability to adjust trigger reactivity.
This on/off assembly will fit and is recommended for the following:
X-Valves
Aluminum RT-Pro Valves
This on/off assembly can fit but is NOT recommended for the following:
E-Mags w/ double o-ring top
Micro E-Mags
MiniMag AIR Valves
68Automag Valves
Classic Automag Valves
SmartMags
This on/off assembly will NOT fit the following:
Stainless Steel RT-Pro Valves
Retro Valves
E-Mags w/ single o-ring top
Original RTs w/ Banjo Bolt valve
Here are some pictures of the on/off hole in various valves to show the difference between single o-ring and double o-ring.
E-Mag Valve with double o-rings. (Note the black quad o-ring which is special to the E-Mag and X-mag only)
Retro Valve with single o-ring. This valve will NOT accept the ULT.
X-Valve. All of these valves have double o-rings and they are now coming installed on new RT-Pros. Both o-rings are removed from the valve, but you can see that the bottom does not have a step in it like Retro Valve. The gray spot at the bottom is just an unanodized spot.
Here is the Classic AIR valve. The same valve used in Automags, Minimags, etc. This valve has always and will always be a double o-ring valve and will accept the ULT, but it is not recommended for use in the this valve. It does not recharge fast enough and thus it is too easy to short stroke.
Any RT valve with single o-rings that is drilled for double o-rings will work perfectly fine as long as it's done PROPERLY.
I will not be drilling any valves for anyone, so please don't ask. There are other people offering this service, but AGD isn't going to warranty their work.
ULT Exploded Parts View
From left to right:
On/Off top o-ring (Same o-ring as on/off center o-ring for RT on/off assembly)
On/Off top w/ o-ring. (O-ring is same as Level 7 PT o-ring and on/off top outer o-ring in double o-ring valves.)
On/Off center o-ring. (New part for ULT. Rubber o-ring, not urethane. Very small, do not lose.)
Shims for adjusting sealing point of on/off top o-ring. (Same dimensions as Level 10 shims, but .005" thick instead of .010")
On/Off bottom w/ o-ring. (Same o-ring as on/off top outer o-ring)
On/Off pin support. (Install after on/off assembly is screwed together. Place grease around outside before inserting into on/off bottom to keep from falling out.)
On/Off Pin. (Very fragile. Take special care when installing. Install so larger diameter head is at top of on/off assembly.)
The pin support just needs to slide into the bottom of the on/off and stay in there when you insert it into the gun. Once it's all gassed up it's "locked" in between the pin and the sear.
Shims are used to control the where the pin seats in the o'ring. The less you have the less reactivity in the trigger pull. The more shims you have, the more reactive the trigger is. If you don't have enough shims, it will be too easy to shortstroke. Add one shim at a time until you like how the trigger is. The maximum number of shims you can use is six. The kit comes with two installed and three extra.
**Thanks to BlackVCG on AO for the work in this section.**
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