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. Rainier Arms Exclusive Danger Close Armament DCA-365 Select Match 9mm Barrel For Sig P365 - (3.1")
    Danger Close Armament DCA-365 Select Match 9mm Barrel For Sig P365 - (3.1")
    Out of stock
    Add to Wish List Add to Compare
  2. Killer Innovations Sig P320 X-Carry Velocity Threaded Barrel
    Killer Innovations Sig P320 X-Carry Velocity Threaded Barrel
    Out of stock
    Add to Wish List Add to Compare
  3. Apex Tactical Specialties FN FNX-45 MRat Compensator - FDE
    Apex Tactical Specialties FN FNX-45 MRat Compensator - FDE
    $190.00
    Out of stock
    Add to Wish List Add to Compare
  4. Battle Arms Development ONE:1 416R Threaded Barrel For Glock 19 - Black Nitride
    Battle Arms Development ONE:1 416R Threaded Barrel For Glock 19 - Black Nitride
    $199.00
    Out of stock
    Add to Wish List Add to Compare
  5. Apex Tactical Specialties Action Enhancement Trigger Kit for Springfield SA-35 / Browning Hi-Power Pistols
    Apex Tactical Specialties Action Enhancement Trigger Kit for Springfield SA-35 / Browning Hi-Power Pistols
    $190.00
    Out of stock
    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. Price $190.00 - $199.99 Remove This Item
Clear All
Shopping Options
Barrel Length
  1. 4.57" 1 item
Caliber
  1. 9mm 3 items
Color
Configuration
  1. P365 1 item
Finish
  1. Black Nitride 1 item
  2. DLC 1 item
  3. Titanium Nitride (TiN) 1 item
Is Firearms?
  1. No 5 items
Manufacturer
  1. Apex Tactical Specialties 2 items
  2. Battle Arms Development 1 item
  3. Danger Close Armament 1 item
  4. Killer Innovations 1 item
Model
  1. Glock 19 1 item
  2. Sig P365 1 item
Option
  1. Glock 1 item
  2. Sig Sauer 2 items
Platform
  1. Glock 1 item
  2. Sig Sauer 1 item
  3. Springfield 1 item
Product Type
  1. Barrel 3 items
  2. Compensator 1 item
  3. Trigger 1 item
Threaded
  1. No 1 item
Twist Rate
  1. 1:10 1 item
Stock Status
  1. Out of stock 5 items Remove This Item
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