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.
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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.
- Product Type Trigger Remove This Item
- Is Firearms? No Remove This Item
- Agency Arms 2 items
- Apex Tactical Specialties 17 items
- Ascalon Arms 1 item
- CMC Triggers 2 items
- Grayguns 11 items
- HB Industries 1 item
- Killer Innovations 5 items
- Lone Wolf Arms 1 item
- Nighthawk Custom 1 item
- Nomad Defense 1 item
- Red Dirt USA 5 items
- Sig Sauer 2 items
- Timney Triggers 2 items
- True Precision 1 item
- Tyrant Designs 5 items
- CZ 75 1 item
- CZ P-10 4 items
- FNH 509 1 item
- FNH FNS 1 item
- Glock 17 18 items
- Glock 19 18 items
- Glock 19X 5 items
- Glock 20 2 items
- Glock 21 2 items
- Glock 22 11 items
- Glock 23 11 items
- Glock 24 9 items
- Glock 25 2 items
- Glock 26 14 items
- Glock 27 11 items
- Glock 29 2 items
- Glock 30 2 items
- Glock 31 10 items
- Glock 32 10 items
- Glock 33 11 items
- Glock 34 16 items
- Glock 35 12 items
- Glock 36 1 item
- Glock 37 5 items
- Glock 38 5 items
- Glock 39 5 items
- Glock 40 2 items
- Glock 41 2 items
- Glock 42 2 items
- Glock 43 8 items
- Glock 43X 7 items
- Glock 44 3 items
- Glock 45 5 items
- Glock 47 1 item
- Glock 48 7 items
- H&K P30 1 item
- Sig P22X 2 items
- Sig P220 2 items
- Sig P226 2 items
- Sig P228 1 item
- Sig P229 2 items
- Sig P238 2 items
- Sig P320 6 items
- Sig P365 2 items
- Sig P365X 1 item
- Sig P365XL 1 item
- Sig P938 1 item
- S&W M&P M2.0 1 item
- S&W M&P Shield 2 items
- Springfield Hellcat 1 item
- Staccato 2011 1 item
- Walther PPQ 1 item
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.