Weaver vs. Picatinny?

wintermute76 · January 28, 2004, 18:57

I just bought an A.R.M.S. #3 for my Stg58 and a Hakko BED-35 electrodot sight.

now I believe the A.R.M.S. has a Picatinny rail, and sight is supposed to be Weaver, I measured what I think is a weaver rail( on my mini-14 mount) and it's about the same as the Picatinny specs that I found at Roderus Custom.

What is the difference if any between the Weaver and Picatinny rails? the only thing I can see, is the vertex of the ring is a little higher that the rail vertex by maybe .010-.015. Anything I should know?

Thanks in advance

yovinny · January 28, 2004, 19:06

The cross slots on a weaver style are narrower and theres no "spec" to the spacing between them, except for that it's the same thing.

Jambo · January 28, 2004, 19:42

from what I can tell, a picatinny rail has a lot more cross slots than a weaver which gives you more flexibility when mounting optics, and the slots are all spaced evenly. But I do think that the rail may be a few thousandths wider than a weaver rail. I'll take the picatinny rail over the weaver rail any day simply because it gives you more flexibility when you're setting the scope for the proper eye relief if the rings are already attached to the scope.

tac-40 · January 28, 2004, 20:25

They are different, and I think the picatinny rails are larger (wider). I know that the weaver mounts will fit both the weaver and picatinny rails but the picatinny mount will NOT fit the weaver rails. My .02.

George · January 28, 2004, 20:58

TAC-40 what you said makes sense- that picatinny rail spacing is slightly wider then weaver.
I have a DSA carbine with DSA scope mount that has picatinny rails. I have Weaver mount Kobra on it. There is "play"- the smaller weaver mount Kobra will shift slightly on the larger picatinny rail spacings.
Notice this also with the ARMS 22M68 mount on my SA Scout. Have to ck if the ARMS 22M68 is the smaller weaver and the Scout rail is the larger spaced picatinny?

yovinny · January 28, 2004, 21:17

Get out the calipers, you'll know for sure then.

wintermute76 · January 28, 2004, 22:18

thanks for the replies guys... I did measure m yweaver rail and it has the same width as the picatinny spec, need to measure the actual picatinny rail tho, don't have it here at work...

thanks again

January 28, 2004, 18:57	#1
wintermute76 Registered FALaholic #: 12322 Join Date: Nov 2003 Posts: 64	Weaver vs. Picatinny? I just bought an A.R.M.S. #3 for my Stg58 and a Hakko BED-35 electrodot sight. now I believe the A.R.M.S. has a Picatinny rail, and sight is supposed to be Weaver, I measured what I think is a weaver rail( on my mini-14 mount) and it's about the same as the Picatinny specs that I found at Roderus Custom. What is the difference if any between the Weaver and Picatinny rails? the only thing I can see, is the vertex of the ring is a little higher that the rail vertex by maybe .010-.015. Anything I should know? Thanks in advance

January 28, 2004, 20:25	#4
tac-40 Moderator Armed Curmudgeon FALaholic #: 12090 Join Date: Oct 2003 Location: SC-Low Country Posts: 4,529	They are different, and I think the picatinny rails are larger (wider). I know that the weaver mounts will fit both the weaver and picatinny rails but the picatinny mount will NOT fit the weaver rails. My .02. __________________ Only 2 defining forces have ever offered to die for you.....Jesus Christ and the American Soldier. One died for your soul, the other for your freedom. Lt. Col. Grant L. Rosensteel, Jr. USAF ______________________________ If you do in fact have a problem, you have the rest of your life to solve it. How long your life lasts only depends on how well you solve it.

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January 28, 2004, 19:06	#2
yovinny Registered FALaholic #: 7679 Join Date: Oct 2002 Location: NY transplant to central Illinois, Now in Kentucky Posts: 3,412	The cross slots on a weaver style are narrower and theres no "spec" to the spacing between them, except for that it's the same thing.

January 28, 2004, 19:42	#3
Jambo Registered FALaholic #: 9707 Join Date: Mar 2003 Location: Coldwater, KS Posts: 657	from what I can tell, a picatinny rail has a lot more cross slots than a weaver which gives you more flexibility when mounting optics, and the slots are all spaced evenly. But I do think that the rail may be a few thousandths wider than a weaver rail. I'll take the picatinny rail over the weaver rail any day simply because it gives you more flexibility when you're setting the scope for the proper eye relief if the rings are already attached to the scope.

January 28, 2004, 20:58	#5
George Registered User FALaholic #: 1466 Join Date: Nov 2000 Location: Alabama Posts: 202	TAC-40 what you said makes sense- that picatinny rail spacing is slightly wider then weaver. I have a DSA carbine with DSA scope mount that has picatinny rails. I have Weaver mount Kobra on it. There is "play"- the smaller weaver mount Kobra will shift slightly on the larger picatinny rail spacings. Notice this also with the ARMS 22M68 mount on my SA Scout. Have to ck if the ARMS 22M68 is the smaller weaver and the Scout rail is the larger spaced picatinny?

January 28, 2004, 21:17	#6
yovinny Registered FALaholic #: 7679 Join Date: Oct 2002 Location: NY transplant to central Illinois, Now in Kentucky Posts: 3,412	Get out the calipers, you'll know for sure then.

January 28, 2004, 22:18	#7
wintermute76 Registered FALaholic #: 12322 Join Date: Nov 2003 Posts: 64	thanks for the replies guys... I did measure m yweaver rail and it has the same width as the picatinny spec, need to measure the actual picatinny rail tho, don't have it here at work... thanks again