On the trigger, it was absolutely abysmally horrid when I got it. Gunsmith worked on it - now it's a nice clean 7-8 pounds, approx. Actually he went a little too far at first, and the gun was double-tapping or triple-tapping sometimes (Grrr), but I *think* that's fixed now that some more jerry-rigging work it has been done - we'll see - if it's not, I'll have to just get a new sear. Doh. Well, it will be just right someday..... So yes, it's easy to fix just by filing down the sear. Back up a sec - I say "easy", but come to think of it, my gunsmith said that taking apart the fire control group was a **** (rhymes with itch), because the plate on the side of the rifle is melted/welded on, and it must be removed to take the thing apart.
You could, with a little finess and patience, however, file down the fire control parts without taking the thing apart. So that would not be difficult. I'd do more lubing and less filing if I were you, because this fire control mechanism relies on the front two teeth of the sear to catch the hammer on the way back "up" from when you release the trigger from it's rearward position, where the hammer is held in place with the rear teeth of the sear. So, if you go too far, the hammer will make an additional trip forward (or two) resulting in double or triple tap while the trigger is making its way to reset before the front two teeth of the sear once again catch the hammer at forward reset. This is not good for 2 very very good reasons - you'd of course need all the NFA / Class III requirements first to have a 2-round-burst gun, I'd almost certainly imagine, if you don't already have them, and 2, sometimes you obviously want one and only one shot, not 2 or 3. So err on the side of caution, and have another sear on hand in case you do go too far, for swapping out, so you don't get Joe Batman knocking on your door. It's a fine line to walk to get a nice trigger but still enough meat on the front teeth to catch the hammer on the way forward without an extra trip forward and back by the hammer. On this subject, one thing that comes to mind as a possibility is to get a stronger hammer spring, because the rear "leafs / extensions" of the hammer spring serve double duty to push the sear up and forward, which in turn pushes the trigger bar and trigger forward. Well, if the spring was stronger, it would push the sear and trigger forward FASTER upon manual release of the trigger, making the front teeth of the sear catch the hammer more quickly, which would in turn allow you to take a little more meat off those teeth, and still have enough to catch the hammer on it's way up the first time, retaining semi-auto. BUT, then, with a stronger hammer spring, assuming such a thing even exists or can be made, might then introduce problems of perhaps broken firing pin or other problems - dunno. No real easy solution, but a combo of good lubing, and a *little* bit of sear filing should be able to get you a quite nice trigger for a *battle* rifle (not really a match rifle).
OK, I'll give a range report later on this week hopefully.
Andrew, no I don't think I ever detailed the project before now - sorry, didn't mean to imply that I had - so my bad, not yours.
Well, it's not cheap, I'll tell ya. A good $525 over the cost of the rifle, not counting shipping to gunsmith, and not counting (most) accessories like scope. So let's say - wow - hadn't really thought about it, and now not so sure I want to - ummm, it's got to be in excess of $1,800....
A big part of that is that Trijicon scope. You could easily get by with a less expensive one, like a LER or Interm. ER scope. You could also go with a regular ER scope - it's a very flexible setup, when you get this P-rail delirious. My second choice scope for it was the Burris 2.75x fixed power LER "scout" scope, but I wanted the IR and the adjustable power up to 4 and down to 1.25 of the Trijicon. Of course, an ACOG would be a nice choice for this rifle, but I just could not afford / justify that, and plus, the Accupoint goes down to 1.25x, which I think might be handy in some circumstances.
My favorite part about this rifle is that it's the ultimate blissninny nightmare, yet-still-civilian-legal-postban EBR, what with the bullpup, pistol grip, etc. (good timing for a halloween blissninny scare).
After all, we learned from the Beltway sniper media and anti-gun group reports, that .223 is the most powerful round on earth, far more powerful than the previously-thought-to-be-the-ultimate-in-deadliness handgun rounds.
Please lemme know if you want me to post a close-up of any other part of the rifle - I will.
I wonder how much bullpup fever this might start - c'mon Tam - NOW you LIKE Bushy bullpups, don't you? [nodding head in hypnotizing manner].
Still need suggestions for a front sight that would work, and attach via that P rail?