Pursue Your Passion
My Cart

Discord

Menu
Account
raineirarms

Rifle Parts

Whether you're building a new rifle from scratch or looking to upgrade an existing firearm, our vast selection of rifle parts has everything you are going to need in that journey. At Rainier Arms' selection of rifle parts, you can find a wide variety of products including lower and upper parts, trigger parts, muzzle devices, and many more. 

Explore our selection of high-quality parts coming from various leading manufacturers like Strike Industries, Magpul, BCM, and many more.

Also, don't forget to check our specially-made Rainier Arms barrels for your firearms.

View as Grid List

Items 49-64 of 135

Page
per page
  4. Triggertech Adaptable AR Trigger - PVD Black
    Triggertech Adaptable AR Trigger - PVD Black
    Out of stock
    Add to Wish List Add to Compare
  5. Triggertech Competitive AR Trigger
    Triggertech Competitive AR Trigger
    Out of stock
    Add to Wish List Add to Compare
  7. Faxon Firearms Pencil .223 Wylde AR-15 Barrel - 14.5"
    Faxon Firearms Pencil .223 Wylde AR-15 Barrel - 14.5"
    $211.60
    Out of stock
    Add to Wish List Add to Compare
  12. Midwest Industries AK Alpha Series M-LOK Handguard - 10"
    Midwest Industries AK Alpha Series M-LOK Handguard - 10"
    $219.95
    Out of stock
    Add to Wish List Add to Compare
  14. Aero Precision M5 Atlas R-One M-Lok Handguard - 15"
    Aero Precision M5 Atlas R-One M-Lok Handguard - 15"
    $224.99
    Out of stock
    Add to Wish List Add to Compare
View as Grid List

Items 49-64 of 135

Page
per page
Shop By
Now Shopping by
  1. Price $200.00 - $299.99 Remove This Item
Clear All
Shopping Options
Barrel Length
  1. 11.5" 1 item
  2. 12" 3 items
  3. 12.5" 1 item
  4. 13.7" 1 item
  5. 14.5" 1 item
  6. 16" 13 items
  7. 18" 4 items
  8. 20" 3 items
  9. 22" 1 item
Barrel Profile
  1. DMR 2 items
  2. MK12 SPR 3 items
Caliber
  1. .223 Wylde 5 items
  2. .30-30 1 item
  3. .308 1 item
  4. .308 Win 3 items
  5. 5.56X45 1 item
  6. 5.56 NATO 8 items
  7. 6mm ARC 8 items
  8. 6.5 Grendel 1 item
  9. 7.62mm 1 item
  10. 8.6 Blackout 1 item
  11. 9mm 2 items
Category
  1. Receiver Parts 29 items
  2. Barrels 27 items
  3. Buffer Systems 1 item
  4. Trigger Parts 22 items
  5. Gas Systems 1 item
  6. Muzzle Devices 1 item
  7. Bolt Parts 10 items
  8. Charging Handles 1 item
  9. Rifle Handguards 24 items
  10. Stocks & Braces 18 items
Co Witness
  1. Lower 1/3 1 item
Color
Configuration
  1. Curved 5 items
  2. Flat 3 items
  3. Rifle 1 item
  4. Straight 1 item
Finish
  1. Black 1 item
  2. Cerakote 1 item
  3. Chrome 1 item
  4. FDE 1 item
  5. Nickel Boron 1 item
  6. Nitride 9 items
  7. Polished 1 item
  8. Satin 7 items
  9. Anodize 6 items
Gas Block Diameter
  1. .625" 3 items
  2. .750" 20 items
  3. .875" 3 items
Gas System Length
  1. Blowback 2 items
  2. Pistol 1 item
  3. Carbine 5 items
  4. Mid 13 items
  5. Rifle 6 items
  6. Rifle +2 1 item
Height
  1. Absolute Co-Witness 1 item
Inside Diameter
  1. 1.34" 1 item
  2. 1.55" 1 item
Is Firearms?
  1. No 135 items
Manufacturer
  1. A3 Tactical 3 items
  2. Aero Precision 13 items
  3. Agency Arms 1 item
  4. Angstadt Arms 1 item
  5. Ascalon Arms 1 item
  6. B5 Systems 1 item
  7. Ballistic Advantage 11 items
  8. Battle Arms Development 4 items
  9. Blackout Defense 5 items
  10. Bravo Company MFG (BCM) 5 items
  11. Centurion Arms 2 items
  12. F5 MFG 8 items
  13. Faxon Firearms 12 items
  14. Fortis MFG 1 item
  15. Forward Controls Design 1 item
  16. Geissele 6 items
  17. HB Industries 1 item
  18. Hiperfire 2 items
  19. JMAC Customs 1 item
  20. JP Enterprises Inc 1 item
  21. Knight’s Armament Company (KAC) 4 items
  22. Lantac 2 items
  23. Lee Sporting 4 items
  24. Lewis Machine & Tool (LMT) 2 items
  25. Maxim Defense 1 item
  26. Midwest Industries 4 items
  27. Noveske 2 items
  28. Precision Reflex Inc 1 item
  29. Primary Weapon Systems 1 item
  30. Q, LLC 1 item
  31. Rainier Arms, LLC 11 items
  32. SB Tactical 1 item
  33. Sharps Bros 3 items
  34. Silencerco 2 items
  35. SLR Rifleworks 1 item
  36. Sons of Liberty Gun Works 1 item
  37. Timney Triggers 4 items
  38. Triggertech 3 items
  39. Troy Industries 3 items
  40. V Seven Weapon Systems 1 item
  41. VLTOR 1 item
Model
  1. CZ Bren 1 item
  2. CZ Scorpion 1 item
  3. H&K G36 1 item
  4. Remington 700 4 items
  5. Sig MCX 1 item
Mount
  1. KeyMod 1 item
  2. M-LOK 12 items
  3. Picatinny 6 items
Option
  1. AR-10 7 items
  2. AR-15 28 items
  3. WA 1 item
  4. KS 1 item
  5. Glock 1 item
  6. AKM 1 item
  7. IWI Uzi Pro 1 item
Platform
  1. AR-10/LR308 5 items
  2. AR-15 32 items
  3. AK47/74 3 items
  4. CZ 1 item
  5. Remington 4 items
  6. Sig Sauer 1 item
Price
  1. $200.00 - $209.99 17 items
  2. $210.00 - $219.99 21 items
  3. $220.00 - $229.99 8 items
  4. $230.00 - $239.99 18 items
  5. $240.00 - $249.99 12 items
  6. $250.00 - $259.99 7 items
  7. $260.00 - $269.99 13 items
  8. $270.00 - $279.99 11 items
  9. $280.00 - $289.99 9 items
  10. $290.00 and above 19 items
Product Type
  1. AR-10/LR308 Barrel 4 items
  2. AR-10 Handguard 2 items
  3. AR-10 Stripped Lower Receiver 2 items
  4. AR-10 Stripped Upper Receiver 2 items
  5. AR-15 Barrel 23 items
  6. AR-15 Complete Lower Receiver 6 items
  7. AR-15 Handguard 12 items
  8. AR-15 Receiver Set 1 item
  9. AR-15 Stripped Lower Receiver 4 items
  10. AR-15 Stripped Upper Receiver 6 items
  11. AR-9 Lower Receiver 2 items
  12. AR-9 Upper Receiver 1 item
  13. Bolt Carrier Group 8 items
  14. Brace 3 items
  15. Buffer Kit 1 item
  16. Charging Handle 1 item
  17. Gas Block 1 item
  18. Handguard 10 items
  19. Handgun 1 item
  20. Lower Receiver 4 items
  21. Muzzle Brake 1 item
  22. Rail Adapter 1 item
  23. Scope Mount 1 item
  24. Stock 14 items
  25. Stock Accessory 1 item
  26. Trigger 22 items
Rail Length
  1. 7" 3 items
  2. 9" 3 items
  3. 9.6" 1 item
  4. 10" 3 items
  5. 10.75" 1 item
  6. 11" 1 item
  7. 12" 1 item
  8. 12.5" 1 item
  9. 13" 1 item
  10. 13.5" 3 items
  11. 13.7" 1 item
  12. 14" 1 item
  13. 15" 9 items
Size
  1. 9 Slot 1 item
Thread Pitch
  1. 1/2x28 (9mm) 1 item
  2. 1/2x28 (.22 cal) 12 items
  3. 5/8x24 (.30 cal) 12 items
  4. M18x1.5 1 item
Twist Rate
  1. 1:3 1 item
  2. 1:7 11 items
  3. 1:7.5 3 items
  4. 1:8 6 items
  5. 1:10 5 items
Stock Status
  1. Out of stock 135 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.
Google Customer Reviews Google Customer Reviews