I posted in another thread that I bought and installed a Timney trigger in an older Colt SP-1 AR-15. Then I bought a big-pin model for a newer HBAR and unfortunately, I didn't know that a lot of Colt rifles have a sear block pinned firmly in the receiver to prevent the use of auto parts. The trigger won't install without milling clearance in the block. Timney will do this for $85.00 if you ship them your lower, so you're out an additional $100 after shipping; unless you feel comfortable doing it yourself. Just a heads up; that turns an already pricey $200 trigger into a REAL pricey $300 trigger.

And as far as I could see, there is no reference to this Colt issue on their web site. Would be nice to know ahead what the risk was.

I have a couple of the H Bars, I installed Jewell triggers and had no problems.

bill springfield will do a job on your trigger for 50 bucks thats probably better then any aftermarket trigger. http://www.triggerwork.net/ar15s.html

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Originally posted by jkingrph:
I have a couple of the H Bars, I installed Jewell triggers and had no problems.

I'm pretty sure this issue is specific to the Timney. Lloyd, I thought about having the trigger system reworked but in the end decided I wanted a single stage trigger.

Big pin, small pin, sear block etc etc is why I dumped those PC bitches years ago.
I have one Colt AR and only because its a 9mm

That damned sear block is why I always look at the lower before I buy it to see if it has or does not have that thing. If it does, I move on to the next guy...

Do the late model LE only models have a sear block? Just wondering.

Never mind. I unbox mine today to have a look-see. No sear block. BTW, I shot it with my kids today as well. They had a wonderful time. Shot the Colt M4, SOCOM 16, Mini 14 and a Wilson Tactical Combat AR15...along with a Kimber Tactical Pro and a Kimber Pro Covert II, both in .45 ACP.

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Never mind. I unbox mine today to have a look-see. No sear block. BTW, I shot it with my kids today as well. They had a wonderful time. Shot the Colt M4, SOCOM 16, Mini 14 and a Wilson Tactical Combat AR15...along with a Kimber Tactical Pro and a Kimber Pro Covert II, both in .45 ACP.

I hope they tell their little friends in school what they did over "Spring Holiday" with Dad. I hope it makes their teacher shit a brick.

I think kids should be introduced to and educated about guns when they learn that their actions have consequences. If kids were to learn about responsibility, behavior and consequence, they would grow into fine adults all that much easier...

I was at the Carson City, NV public range yesterday shootin' an AR and a little Taurus Model 94 9-shot .22LR revolver. A man was there with his little son; I'd say the little guy was probably eight or nine years old. The young rifleman had a little single-shot, break-open Rossi rifle. Pop had an AR carbine. While my brain-dead friend was at the far end of the benches wasting my AR ammo, I offered the man and his son to shoot my revolver. Both enjoyed it very much. I am glad to see a man bring his young son out and teach him shooting. My dad had me out once when I was six or seven just to watch him sight his .30-06 for huntin' season way back in the mid 1960s. I went huntin' with him twice in '66 and '67, but we never saw anything-- not even deercrap on the trail. I did get to carry my dad's 1950 M70 (still has it) until I got tired. I hope that little boy tells all his schoolyard friends what he did over the weekend-- and by virtue, spreads fear and loathing in his teachers...

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and by virtue, spreads fear and loathing in his teachers...

Just awesome. May they thus lie awake for days upon end, drenched in pools of their own cold sweat.