What does a RRA hammer look like?

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[ARCHIVED THREAD] - What does a RRA hammer look like?

Posted: 3/27/2009 10:18:22 AM EDT

Recently purchased several RRA LPKs for a local group buy/build I was coordinating.

The LPKs ended up having two different hammer styles. Style 1 was unnotched and marked with four dots in a circle on the left side of the hammer. Style 2 was notched and marked with two letter S on the right side of the hammer. Style 1 has noticeably better trigger pull.

Are these both genuine RRA hammers? Could there have been a mixup? What style hammers do known-genuine RRA rifles use?

Posted: 3/27/2009 10:57:24 AM EDT

[#1]

I've only had three RRA LPK's so that is not adequate enough sample size to draw any conclusions but all three of mine were style 2.

Posted: 3/27/2009 11:03:49 AM EDT

[#2]

I can't view the photos at work due to the filters. All of the RRA parts kits I have used have had notched hammers.

Posted: 3/27/2009 11:12:03 AM EDT

[#3]

My RRA hammer is notched. The top image looks like an un-notched DPMS type hammer.

Posted: 3/27/2009 11:13:42 AM EDT

[#4]

the one that came in my LPK was style 2

Posted: 3/27/2009 11:14:37 AM EDT

[#5]

The RRA's kits I own look like your second photo. Same markings too. They are definately notched as mentioned above. My complete weapon came with the 2-stage, so I cant say for certain concerning complete weapons though.

Posted: 3/27/2009 11:15:39 AM EDT

[#6]

Never owned a RRA single stage, but that notch looks RRA'ish :)
Compare to their 2-stage NM hammer, same notch

Posted: 3/27/2009 11:18:50 AM EDT

[#7]

Interesting. I really like the Style 1 hammer - I wonder who made it if it wasn't RRA?

Posted: 3/27/2009 12:30:58 PM EDT

[#8]

Somebody edjumicate me, what is the reason for the notch?

Thanks,

Hootbro

Posted: 3/27/2009 12:35:12 PM EDT

[#9]

+1 on the second style with the notched hammer. However my RRA LPK has a noticably better pull and break then my dpms LPK and others i have used.

mike

Posted: 3/27/2009 12:36:50 PM EDT

[#10]

Interesting, I just got a stag LPK direct from stag and the hammer in that one is exactly like the one in pic one right down to the
4 dots in the circle.

Posted: 3/27/2009 12:46:52 PM EDT

[#11]

Quoted:
Interesting, I just got a stag LPK direct from stag and the hammer in that one is exactly like the one in pic one right down to the
4 dots in the circle.

Thanks - it is entirely plausible that some RRA parts got crossed over with some Stag parts.

Posted: 3/27/2009 12:46:52 PM EDT

[#12]

They're both RRA supposedly! I've been informed RRA has 2 different suppliers for their LPKs, hence the differences. I've found the LPK w/ the hammer in photo #1 gives a better trigger pull as well. #2 is much more heavy!!

Posted: 3/27/2009 1:21:48 PM EDT

[#13]

Quoted:
Interesting, I just got a stag LPK direct from stag and the hammer in that one is exactly like the one in pic one right down to the
4 dots in the circle.

Stag has switched to the no-notch hammer in the last year or two.
My first four Stags had notched hammers.
My last two have been no-notch.

Posted: 3/27/2009 1:41:40 PM EDT

[#14]

just bought a RRA LPK and it has notched hammer with the "s"

Posted: 3/27/2009 2:04:29 PM EDT

[#15]

Holy hell I can't believe I missed this thread.

I ordered two Stag LPKs directly from their web site and was shipped two kits from what I guess is their distributor LAN World.

One hammer looked like the top picture with the circle and 4 dots then the other hammer looked like the bottom picture with two "S" stampings etc.

There are also other variations in the features of the hammers as seen in my photos.

Also, one of the disconnectors looks off although it is probably functional.

Check out my thread:

http://www.ar15.com/forums/topic.html?b=3&f=118&t=434832

ETA: I also have a RRA hammer purchased about a year ago that has the two "S" stampings.

Posted: 3/27/2009 2:34:34 PM EDT

[#16]

My last LPK was from DPMS as I did not want the 'notch'. There was no makers marks on the hammer.

Posted: 3/27/2009 2:41:47 PM EDT

[#17]

My single stage RRA lower that I bought about a month ago looks like #2.

Posted: 3/27/2009 2:54:55 PM EDT

[#18]

I have style 1 but without the four dots in the circle

Posted: 3/27/2009 3:01:57 PM EDT

[#19]

different suppliers, that's all

Posted: 3/27/2009 3:14:28 PM EDT

[#20]

Just looked at my new 6940 (.154" pins) and my hammer has the two "S"s but not the circles. Whoever "S" "S" is, Colt is using their hammers in their .154" FCG lowers.

Larry

Posted: 3/27/2009 3:58:48 PM EDT

[#21]

The hammer without the notch looks like the one in My Stag Model 2. Including the 4 dots.

The notched hammer question has come up before:

http://www.ar15.com/forums/topic.html?b=3&f=118&t=400702

Posted: 3/27/2009 9:00:25 PM EDT

[#22]

Quoted:
The hammer without the notch looks like the one in My Stag Model 2. Including the 4 dots.

The notched hammer question has come up before:
http://www.ar15.com/forums/topic.html?b=3&f=118&t=400702

LOL - I was OP on both threads.

The other thread I was asking questions because I was thinking a little about (and still am) an alternative hammer/trigger design.

This thread, I was just curious if my parts were genuine RRA. Also, the one without the notch has a noticeably better pull, but that clearly has nothing to do with the notch and is probably just better sear surfaces.

Posted: 3/27/2009 10:55:38 PM EDT

[#23]

That looks just like the hammer I got with my M&A kit

Posted: 3/27/2009 11:00:10 PM EDT

[#24]

My RRA hammer from a LPK I bought last summer looks like No. 2

The reason for the notch, from what I understand, is that if you get a following hammer it will catch on the bolt carrier and not strike the primer.

ETA: A following hammer would be a malfunctioning hammer from broken parts, and pretty unlikely event. The notch is not required IIRC

Posted: 3/28/2009 2:44:00 AM EDT

[#25]

Interesting thread.

[ARCHIVED THREAD] - What does a RRA hammer look like?

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