Taipan Evo safety catch removal

[Tiger650]

Hello Gents, I think I know the answer to the question I am about to ask but just in case not.
New Taipan Evo with std heavy trigger, I had a friend from overseas send me a JP Enterprises "Enhanced Reliability" trigger spring kit.
The trigger group looks to be held together by captive hollow pins, the trigger group is located in the lower receiver by Allen head grub screws threaded into the bores of these hollow pins [4 screws in total]
Screws removed,the trigger group can be lifted upward but cannot be removed from the receiver with the safety in place, close but no.
I reckon that to remove the safety I need to remove the safety detent pin and spring and to do that I need to "split" the rear buttstock into two halves along it's seam line ?
I also have concerns that if the trigger group is effectively riveted together by the two [hollow / threaded] captive pins spring replacement may not be possible ?
Any assistance much appreciated.

[Wapiti]

Mate, given that the standard trigger pack in those rifles is the same as that fitted to their Victor Precision AR rifle, I would assume that the standard procedure of you removing the grip with an allen key up inside it, dropping out the safety detent and spring to slide out the safety barrel will allow the trigger pack to lift out the top of the split receiver. After you remove the little screws threaded onto where pins in AR's are always found.

You may find as I did that the inclusion of new springs in this trigger won't do much to the "feel" of it, because I'm pretty sure it's one of those "climbing sear" triggers. Meaning that to release the sear the hammer is actually pulled rearwards a fraction against the spring when you squeeze the trigger before it trips, just like a double action revolver works but obviously way less travel.
This is a cheapie way to ensure a trigger won't "double" and decock by following the bolt when you lighten the springs, and severely limits the triggers being made better.
An excellent trigger will be a neutral sear trigger, which are the beautiful (for an AR style) single stage jobs out there.

They certainly did some engineering cavemanship making that Taipan how they did screwing everything together. The butt in the Gen 2 impedes the trigger pack dropping out?

I have bought one of those triggers separately, however it was the version that claimed a certain nicer trigger than the dog that comes with the rifle in the box (A f**ken insult really) but it's certainly not that great and haven't attempted to dismantle it. It's still in it's plastic pack.

I do not like the two-stage trigger, just me personally. The single stage ones are 3lb and crisp as a winter morning without creep. The shame is the extra <>$300 extra you need to fork out.

[Tiger650]

Cheers Wapiti
The Evo stock has the pistol grip as part of the buttstock moulding, one big piece split vertically along a seam line and screwed together with lots of Torx screws, looks like ever one of those Torx [13 I think] has to come out to remove the buttstock / pistol grip and back out the detent to allow the safety to be removed. Also wondering how the female OD sling swivel mounts just in front of the buttplate are installed, hopefully moulded into one side only.

[Tiger650]

Well Gents, in case anybody is interested the rifle is back together without the JP spring kit.

I am near certain that the JP springs would be difficult or impossible to install.
The common or "Milspec AR-15 is arranged so that the sides of the lower receiver are the sides of the trigger group, the hammer and then the trigger can be removed as separate parts after removing the individual pivot pins which run through the receiver walls and across the receiver, the hammer and trigger bear directly onto [ pivot on ] those pins.

The Taipan trigger, and many aftermarket "drop in" AR-15 triggers are effectively one piece assemblies which incorporate fixed side plates, the trigger and hammer pins are hollow pins which are crimped to the trigger side plates and the original AR pins pass through these to fix the trigger group into the lower receiver.

The latter arrangement works well, probably the best setup given the Evo's polymer lower but also makes the JP springs unusable as the "cassette" triggers have insufficient width between the plates for the JP springs.even if you were game enough to try to remove [punch out] the crimped / pressed in hollow pins from the side plates.

An interesting excercise in any case, if anyone wanst to replace an EVO trigger you will need at least two sets of various Torx bits and I would advise using an old white towel on the workbench to keep track of some really tiny screws, my eyes are old and even with specs it would be easy to lose one.

[Wapiti]

Sorry to hear you couldn't find a way to lighten the trigger yet.

To others also looking at DIY, I have a Warwick supposed Aus-made trigger cassette here as well, and it's the same. Crimped together. It's unusable because the hammer spring is so light that it won't detonate the primers of many brands of factory ammo, and won't fire the harder 5.56 ammo primers either.
Again, the sh*t design of the "climbing" trigger sears, the only way other than polished contact surfaces to lighten these trigger pulls is a lighter hammer spring.
But get it wrong...

[jezzab]

I fitted a Victor Precision 2 stage to my Taipan X yesterday. There was a couple of gotchas and I nearly picked up the phone. I decided I didn't want to drill the anti walk trigger hammer pin hole out to 4mm in case I didn't like the trigger so I shaved 1mm off each side.
After test fitting, the screw holes were out 0.5mm. no matter what I tried and the back of the trigger was hitting the back of the trigger cutout. It was in the boss and not moving so the alignment was good. In the end I threw the main screw to hold the trigger assembly in and it pulled down and aligned. I realized it needed to go down but I couldn't push it with my fingers. Unfortunately I didn't have the pin in at the time and it had to come out and that's when I learned the tolerances were obviously damn close on that boss when they machined it (maybe they didn't factor in the paint)

Anyway, popped it back out, pin back in, all together and I love it

[Tiger650]

Cheers Jezzab, good information. During my exhaustive research [Youtube] on AR 15 triggers I noted that a couple which have rubber cushions on the base of the trigger assembly which must be compressed a little to allow pins to be fitted.

[Tiger650]

Contacted SCSA re safety catch removal, they were kind enough to reply, confirming that the safety catch detent spring is retained within the pistol grip as per std AR-15 practice and that the butt stock must be split into two parts to allow spring / safety catch removal.