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Are Picatinny Rails Universal

author
Maria Johnson
• Friday, 01 January, 2021
• 9 min read

There’s a wide variety of mountable accessories out there these days like optics, lights, bipeds, lasers, foregrips, and more. We feel you, cute kitty. In this guide, we’ll answer those questions and discuss the differences between the Weaver and Pica tinny rail systems.

rail picatinny universal mounting hardware polymer ergo xtreme service loading
(Source: www.midwayusa.com)

Contents

William Weaver doing what he did best (Photo: James Fishing)Before his invention, rails paired to a specific gun or optic. Weaver developed a universal system that could work with almost any gun and scope.

At the time, scopes were pretty much the only mountable accessory, at least with any level of popularity, so Weaver designed his rail with rifle scopes in mind. That surface area contact played a vital role, though canting still occurred.

Scopes need to run precisely parallel to your barrel to be accurate, so not being able to properly line up the rails could be a huge problem. Some one-piece rails (for both Weaver and Pica tinny) have a cut-out space in the bottom to allow more room over the ejection port.

Top Mount Base Pair (Photo: Weaver Optics)They still don’t usually provide enough space for convenient loading, though, so that rail style is better for guns with detachable magazines. Weaver rails were initially manufactured with scopes in mind, but the rise of other types of mountable accessories, led to other types of Weaver rails for other gear.

After development, Pica tinny Arsenal handled the rail’s final testing and thus received the honor of the name. The larger groove size and squarer shape mean you can generally use Weaver accessories on Picatinnyrails, but it doesn’t usually work the other way around.

picatinny barrel rail mount clamp rifle universal rails metal gun tri triple ar15 caliber 56mm brand ar accessories m16
(Source: www.aliexpress.com)

The plentiful grooves on a Pica tinny give you more options for placement of accessories along the rail. Proximity of grooves close together means finer position adjustments than a Weaver rail traditionally would.

Picatinnyrails also allow mounts to slide up and down the rail for easier placement and position adjustments. Picatinnyrails make it easy to mount lots of accessories.

Locking bars provide greater stability, even with higher calibers. Also, plenty of attachable accessories were already on the market by the time the Pica tinny rail arrived, so the design works with more than just scopes.

These advantages led to the Pica tinny rail largely taking over the market. The military modified the M16A2 and M4 carbine to use Picatinnyrails shortly after the introduction of the new rail system.

You’ll frequently find Picatinnyrails directly integrated into rifle receivers and hand guards. You can also find them atop rimfire slides, mostly for mounting optics like red dots.

sights rail gun types pistol picatinny fixed adjustable carry accessory gear does they need concealed rails re difference
(Source: gunbelts.com)

Picatinnyrails gained momentum because of their advantages, and that popularity led to more compatible mounts and accessories. The prevalence of mounts and accessories, in turn, led to more people opting for Picatinnyrails.

Whether you like the nostalgia or just prefer the platform, there’s nothing wrong with sticking with Weaver if you dig it more. However, if you’ve been a Weaver loyalist for a while, there’s no shame in sticking with a mounting platform you know and trust.

Romanian PSL rifle with Warsaw Rail a variation of a dovetail used for scopes from 1954. Becoming common on the AK- ### series as of 1992 Rail systems on firearms are straight mounting brackets (usually made of strips of metal or polymer) on the gun's receiver, hand guard or fore-end stock to allow sliding/variable-position attachment of optical sights and accessories such as tactical lights, laser sights, vertical/angled foregrips and bipeds.

Which may be ether ring, loop and/or quick detach mounts using push button style hardware. An advantage with the multiple rail slots is the moveable positions to adjust for optimal placement of each item for each different user.

Tactical usage and Shooting sports have both benefited from the extra options provided. Original rails were a raised metal strip with the sides undercut, less standardized than the dovetail design, to allow hardware to slide on and be secured by means of compression only.

870 remington scope mount gg
(Source: www.gggaz.com)

Most modern military and civilian semi-automaticFirearm have rails that may replace original parts. Hogs have started to include and use rail sections and options for attachments of optics.

Civilian clone Rifles are the largest adapters, while the Crossbows, Hunting Rifles, shot guns and Handguns have started to come from the factory with rail sections either attached and/or made structurally as part of the actual Firearm. MIL-STD-1913 Picatinnyrails date from the mid-1990s and have very strict dimension and tolerance standards.

The Pica tinny has rail of very similar profile to the Weaver, but the slot width is 0.206 in (5.23 mm), and by contrast with the Weaver, the spacing of slot centers is consistent, at 0.394 in (10.01 mm). Dovetail rail, Weaver and Pica tinny are all outward or raised attachment surfaces.

While Milk and Named have smooth surfaces with different standards & styles of holes cut into their assembles to place the attachment hardware internally. Items may be fastened by threaded bolts, requiring the use of a screwdriver or Allen wrench, with some tool free variations of a Thumb screw(s) or Thumb nut(S), may have threaded quick disconnect lever that pulls the hardware and plates together against the rails.

The SIG Sauer SSG 3000 sniper rifle features an Auschwitz type UIT rail on the underside of its hand guard. The rifle pictured is also fitted with a Mass Victory Diagram 3-12×56 telescopic sight with Mass inner rail. Drawing comparing Auschwitz (left) and Freeland equipment rails (right). A U.S. Army Ranger, armed with a M249 light machine gun, Showing multiple Rails and Accessories in overwatch security on an objective during a mission in Iraq, 2006. Rail systems usually are based on the hand guard of a weapon and/or the Upper receiver.

rail scope mount winchester 94 92 optic dovetail rossi tactical sight pearson drill mounts dr universal drilling lever rails rear
(Source: universalopticsrail.com)

Rails on rifles usually start off at top dead center or 12 o'clock with the next placement at bottom 180° degrees or at 6 o'clock. 1 o'clock or 11'o'clock is popular for the flashlight with a tape switch location placed on user preference.

There may be additional attachment rails or holes at each 45°degree angle position running partially or entirely the length of the hand guard. On the Kalashnikov rifles AK style/family the Warsaw rail is attached to the left side of the receiver when viewed from the rear.

With more modern versions adding Pica tinny style rails on to the sides of the hand guards of the rifles for the mounting of addition equipment. Due to updating equipment, both styles may be found on some Warsaw Pact weapons.

Modern designed firearms often include rails made into the body, instead of being an added on modification. This is easier than milling out a dove tail slot for placement of a gun sight's parts.

Which may align with the original iron sights inline or below an illuminated optic's center dot, ring or chevron. In addition to height variations some rail brackets may be offset at various degrees, 22.5°, 45°, & 90° are the most common, to place accessories and/or back up folding collapsible iron sights.

mount night integrated sight universal vision mounts accuracy international badgerordnance
(Source: www.badgerordnance.com)

So they are out of the line sight on the top of the firearm and/or to decrease the outer profile edge's size. The rail section may also move a weapon-mounted lights forward so the flashlight(UK torch) does not shine and reflect back on the firearm directly.

The amount of rail space allows adjustment and personal optimization of each device and tool attached for the user. Thus rail covers and protectors may be added, to prevent snagging on gear and/or plant foliage.

Future rails systems will have the option of carry power to supply the needs of the increasing electronics mounted to aid the shooter and/or soldier. ^ Pica tinny, Weaver & dovetail scope bases Murmansk, Kevin (16 June 2014).

OverviewSpecifications Q&A Reviews The Leopold Backcountry cross-slot scope base is constructed from 7075 aircraft grade aluminum providing extra strength for heavier optics. The universal cross-slot design fits both pica tinny and weaver style rings.

NOTE: Prices, specifications and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.

bipod grip foregrip ar15 adjustable height polymer accessories ar tactical rail bipods grips barrel parts mounts rifle team
(Source: team15tactical.com)

Air Guns Ammunition Archery Black Powder Supplies Books & Videos Camping & Survival Clothing Fishing Footwear Gun Parts Guns Gunsmith Supplies Holsters & Belts Hunting Gear Knives & Tools Military Surplus Optics Reloading Supplies Shooting Gear Full Store Directory Show All 19 Categories There’s a wide variety of mountable accessories out there these days like optics, lights, bipeds, lasers, foregrips, and more.

We feel you, cute kitty. In this guide, we’ll answer those questions and discuss the differences between the Weaver and Pica tinny rail systems. William Weaver doing what he did best (Photo: James Fishing)Before his invention, rails paired to a specific gun or optic.

Weaver developed a universal system that could work with almost any gun and scope. At the time, scopes were pretty much the only mountable accessory, at least with any level of popularity, so Weaver designed his rail with rifle scopes in mind.

That surface area contact played a vital role, though canting still occurred. Scopes need to run precisely parallel to your barrel to be accurate, so not being able to properly line up the rails could be a huge problem.

Some one-piece rails (for both Weaver and Pica tinny) have a cut-out space in the bottom to allow more room over the ejection port. Top Mount Base Pair (Photo: Weaver Optics)They still don’t usually provide enough space for convenient loading, though, so that rail style is better for guns with detachable magazines.

ak rail mount side 47 guntec picatinny profile saiga usa low galatiinternational
(Source: www.galatiinternational.com)

Weaver rails were initially manufactured with scopes in mind, but the rise of other types of mountable accessories, led to other types of Weaver rails for other gear. After development, Pica tinny Arsenal handled the rail’s final testing and thus received the honor of the name.

The larger groove size and squarer shape mean you can generally use Weaver accessories on Picatinnyrails, but it doesn’t usually work the other way around. The plentiful grooves on a Pica tinny give you more options for placement of accessories along the rail.

Proximity of grooves close together means finer position adjustments than a Weaver rail traditionally would. Picatinnyrails also allow mounts to slide up and down the rail for easier placement and position adjustments.

Picatinnyrails make it easy to mount lots of accessories. Locking bars provide greater stability, even with higher calibers.

Also, plenty of attachable accessories were already on the market by the time the Pica tinny rail arrived, so the design works with more than just scopes. These advantages led to the Pica tinny rail largely taking over the market.

mossberg 500 tactical rail picatinny quad aces upgrade kit complete maverick a1 590a1
(Source: www.cdarmssupply.com)

The military modified the M16A2 and M4 carbine to use Picatinnyrails shortly after the introduction of the new rail system. You’ll frequently find Picatinnyrails directly integrated into rifle receivers and hand guards.

You can also find them atop rimfire slides, mostly for mounting optics like red dots. Picatinnyrails gained momentum because of their advantages, and that popularity led to more compatible mounts and accessories.

The prevalence of mounts and accessories, in turn, led to more people opting for Picatinnyrails. Whether you like the nostalgia or just prefer the platform, there’s nothing wrong with sticking with Weaver if you dig it more.

However, if you’ve been a Weaver loyalist for a while, there’s no shame in sticking with a mounting platform you know and trust.

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Sources
1 www.ballethub.com - https://www.ballethub.com/ballet-lesson/tips-exercises-for-improving-turnout/
2 www.pointemagazine.com - https://www.pointemagazine.com/turnout-exercises-2624948366.html
3 www.pointemagazine.com - https://www.pointemagazine.com/exercises-to-improve-your-turnout-2412904239.html
4 www.theballetblog.com - https://www.theballetblog.com/portfolio/training-turnout-part-2-isolating-your-true-turnout/
5 www.nbcnews.com - https://www.nbcnews.com/better/health/5-simple-exercises-stronger-tighter-glutes-ncna870381