Pursue Your Passion
My Cart

Discord

Menu
Account

Parts

Our amazing offer consists of a great variety of AR-10, AR-15, and pistol parts and accessories. Purchase upper receivers, muzzle devices, handguards, BCG, barrels, triggers, magazine extensions, etc., and start modifying your firearm today.

Parts

Dark mode is

View as Grid List

5 Items

per page
  1. Killer Innovations CZ P10-C Non-Threaded Velocity Barrel
    Killer Innovations CZ P10-C Non-Threaded Velocity Barrel
    $249.00
    Add to Wish List Add to Compare
  2. Killer Innovations Sig P320C Velocity Non-Threaded Barrel
    Killer Innovations Sig P320C Velocity Non-Threaded Barrel
    $249.00
    Add to Wish List Add to Compare
  3. Killer Innovations Threaded Velocity Barrel For Glock 17
    Killer Innovations Threaded Velocity Barrel For Glock 17
    $249.00
    Add to Wish List Add to Compare
  4. Killer Innovations Threaded Velocity Barrel For Glock 26
    Killer Innovations Threaded Velocity Barrel For Glock 26
    $249.00
    Add to Wish List Add to Compare
  5. Killer Innovations Velocity Threaded Barrel For Glock 19
    Killer Innovations Velocity Threaded Barrel For Glock 19
    $249.00
    Add to Wish List Add to Compare
View as Grid List

5 Items

per page

Firearm parts

Rainier Arms is the best place to purchase parts and accessories for your rifle or pistol online, and all that for more than affordable prices. Look no further, you can find here everything that comes to your mind and more! The best manufacturers in the business, like Killer Innovations, Lantac, Next Level Armament, Rainier Arms LLC, Apex Tactical Specialties, and many more are here to offer you their high-quality products. Select your preferred part and make your AR-10, AR-15 or pistol a unique piece of firearm.

Shop By
Now Shopping by
  1. Finish Molecular Dense Coating (MDC) Remove This Item
  2. Price $240.00 - $249.99 Remove This Item
Clear All
Shopping Options
My Wish List
Last Added Items
  1. Add to Cart
    Remove This Item
Go to Wish List
You have no items in your wish list.

What are the most common barrel thread patterns for pistols and rifles?

For .22LR, .22MAG, .17HMR, 9mm, and .223/5.56 NATO the most common thread pattern would be 1/2x28, with some exceptions for 9mm and .223/5.56 NATO firearms. As for .308/7.62mm and .338 Lapua Magnum, the thread pattern that is most commonly used is 5/8x24, with a few exceptions. Another typical thread pattern is 9/16x24 and it is mostly used for .40 S&W weapons.

Single triggers or two-stage triggers?

Whichever you choose, you cannot go wrong. The single trigger is fast and simple to use; as soon as you apply a small amount of pressure, the firearm goes off. Two-stage trigger is extremely accurate and you know precisely when the shot is going to be fired. The first stage prepares you for the second one, when the trigger pushes the hammer up causing the firearm to discharge. So, it is up to you to make a choice.

Google Customer Reviews Google Customer Reviews