E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Everything Else > The Off-Topic > Gun Talk

Gun Talk
Are you a gun fanatic as well? If so, you'll want to talk to other owners about what you own in this forum.

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 05-28-2014, 08:21 PM   #1
cowmoo32
drunken science
 
cowmoo32's Avatar
 
Join Date: Jul 2003
Location: Raleigh, NC
Posts: 5,532
My Ride: Trek 1.5
Picatinny vs Weaver rail system?

What are the differences? Is one used for scopes and the other used just for accessories? Or are they used for both and one favored over the other?
__________________

flickher

What's this about a brownie in motion?
cowmoo32 is online now   Reply With Quote
Old 05-28-2014, 08:26 PM   #2
Serbonze
Master of his domain.
 
Join Date: Feb 2003
Location: In my house
Posts: 2,053
My Ride: My wife
Short answer, the grooves. Very detailed answer:

http://www.brownells.com/.aspx/lid=1...he_Difference_

Quote:
What are the differences between the “Picatinny” and the “Weaver” systems? The profile of the two systems is virtually identical. Depending on the quality of the machining done by the manufacturer, the two systems should be indistinguishable from the profile. The key difference lies in the placement of the recoil grooves and with width of the grooves. MIL-STD-1913 (Picatinny) grooves are .206” wide and have a center-to-center width of .394”. The placement of these grooves has to be consistent in order for it to be a true “Picatinny” MIL-STD system. Weaver systems have a .180” width of recoil groove and are not necessarily consistent in a center-to-center measurement from one groove to the next. In many instances, a Weaver system has a specific application that it is machined for, so interchangeability is not necessarily an issue. A MIL-STD-1913 system must adhere to the specifications listed above in order for it to be considered MIL-STD, since the military desires uniformity in the recoil grooves to allow for different systems to be mounted on the weapon with no concern for compatibility.

Now, what does this mean to you? Boiled down, it means that accessories designed for a Weaver system will, in most cases, fit on a “Picatinny” system. The reverse, however, is probably not the case. Due to the larger recoil groove, “Picatinny” accessories will not fit a Weaver system. There are, of course, exceptions to every rule, but for a good rule-of-thumb, “Picatinny” won’t fit Weaver, but Weaver will fit “Picatinny”.
__________________

Last edited by Serbonze; 05-28-2014 at 08:27 PM.
Serbonze is offline   Reply With Quote
Old 05-28-2014, 08:27 PM   #3
cowmoo32
drunken science
 
cowmoo32's Avatar
 
Join Date: Jul 2003
Location: Raleigh, NC
Posts: 5,532
My Ride: Trek 1.5
Perfect, that's what I needed. Is one favored over the other as far as an industry standard or is it more up to personal preference? Or more importantly, will an accessory designed to work with one work with the other?"

edit:
Quote:
In many instances, a Weaver system has a specific application that it is machined for, so interchangeability is not necessarily an issue.
That settles that
__________________

flickher

What's this about a brownie in motion?

Last edited by cowmoo32; 05-28-2014 at 08:30 PM.
cowmoo32 is online now   Reply With Quote
Old 05-28-2014, 08:36 PM   #4
Reedo302
Registered User
 
Reedo302's Avatar
 
Join Date: Aug 2005
Location: Minnesota
Posts: 7,775
My Ride: F30 328i M Sport
If you have a choice between the two, get Picatinny. Picatinny M1913 STANAG is an international standard. Weaver is not. Nearly all accessories now are designed for Picatinny mounting. If the question relates to scope bases, you most definitely want Picatinny due to the abundance of options available. The weaver system is all but dead at this point, and typically are only sold/mounted on low end hunting rifles.
__________________



Gunfighter Training Development and Evaluation
AR15/AR10 Armorer/Advanced Armorer
Glock Armorer


Gunfighter Training YouTube Channel
Reedo302 is offline   Reply With Quote
Old 05-28-2014, 08:54 PM   #5
cowmoo32
drunken science
 
cowmoo32's Avatar
 
Join Date: Jul 2003
Location: Raleigh, NC
Posts: 5,532
My Ride: Trek 1.5
It's for some design work I'm doing. I've seen the rail systems before but had no clue about a standard or how exactly they function; I've always shot my friends' AR's, still don't own one yet.
__________________

flickher

What's this about a brownie in motion?

Last edited by cowmoo32; 05-28-2014 at 08:55 PM.
cowmoo32 is online now   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is OFF





All times are GMT -5. The time now is 03:57 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use