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Receiver Parts

Build a better rifle with uppers, lowers, and receiver parts from popular brands like Aero Precision, CMMG, and Strike Industries. Shop with confidence when you buy receiver parts online at Classic Firearms!

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1-24 of 1254 Products
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TacFire LPK01USA AR-15 Complete Lower Parts Kit W / Black A2 Grip Black
$24 99 $49.99
In Stock
Aero Precision Standard AR-15 Black Hardcoat Anodized, Complete Lower Parts Kit W A2 Pistol Grip - APRH100029C
$49 99 $85.99
In Stock
AR57 16" Complete ULT M-LOK Upper Receiver 5.7x28 Caliber With BCG, Muzzle Brake, M-LOK Rails and 1-50 Round Mag, Drop In Ready
$599 99 $679.99
In Stock
Only 1 Left!
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Aero Precision AR15 Stripped Lower Receiver, Gen 2 - Anodized Black - APAR501101C
$69 99 $119.99
In Stock
Anderson AR-15 Stripped Lower Receiver Closed Trigger - AR15-A3-LWFOR-UM-CLOSED
$58 99 $64.99
In Stock
TacFire MAR094 AR15 Forward Assist, Firearm Part, Steel, Black Oxide Finish, Includes Roll Pin and Spring.
$4 99 $6.99
In Stock
Only 6 Left!
Anderson AR-15 Complete Lower Receiver W/ 6 Position Adjustable Stock - Ready To Accept Any Complete Upper - Simply Push Pins and Rock And Roll
$137 99 $144.99
In Stock
Aero Precision M4E1 Stripped Lower Receiver AR-15 Platform Black Hardcoat Anodized - APAR600001C
$119 99 $139.99
In Stock
TAPCO SKS Steel Shell Deflector - 16675 - Closeout
$2 99 $4.99
In Stock
CMMG 55CA6B8 Lower Parts Kit AR-15 Single-Stage Trigger Ambidextrous Lever Safety Black
$49 99 $92.99
In Stock
Aero Precision M4E1 Enhanced 18" 5.56 Rifle Length Complete Upper Receiver with 15" Enhanced Gen 2 M-LOK Handguard - Anodized Black - APAR640251M8
$399 99 $599.99
In Stock
Only 2 Left!
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Aero Precision M5 (.308) Carbine Complete Lower Receiver w/ A2 Grip, No Stock - Anodized Black - APAR308214
$299 99 $394.99
In Stock
Only 1 Left!
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Battle Arms Development Bad Ass Pro Reversible 90/60 Ambidextrous Safety Selector - BAD-ASS-PRO
TOO LOW TO SHOW
In Stock
Sylvan Arms SCB100 AR-15 Lower Receiver 9mm Sig P320 Compatible Magazine Conversion Block
TOO LOW TO SHOW
In Stock
Aero Precision AR15 Complete Upper, 16" 5.56 Mid-Length Barrel with Pinned FSB, MOE SL Mid-Length - FDE - APAR502506M65
$289 99 $414.99
In Stock
Only 1 Left!
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Aero Precision Billet Trigger Guard w/ Logo - Anodized Black - APRH100305C
$19 99 $25.99
In Stock
Only 4 Left!
Aero Precision M4E1 Threaded 18" .223 Wylde Complete Upper Receiver with 15" ATLAS R-ONE Handguard - Anodized Black - APAR700705M42
$419 99 $534.99
In Stock
Only 4 Left!
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Aero Precision M5 16" .308 SS Complete Upper Receiver with 15" ATLAS S-ONE Handguard - Anodized Black - APAR538105M23
$499 99 $729.99
In Stock
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Aero Precision AR15 Ambidextrous Lower Receiver - Anodized Black - APAR501102AC
$99 99 $149.99
In Stock
Battle Arms Development Enhanced Pin Set -Titanium - BAD-EPS-Ti
$24 99 $37.00
In Stock
Only 1 Left!
Aero Precision AR-15 M4E1 Builder Set with Lower Receiver, Upper Receiver, & Handguard - Custom Finish
$499 99 $549.99
In Stock
Only 1 Left!
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