M4 Trigger Guard Spring
$1.29 at Brownells
In stock Sale
Colt AR-15 Parts
MyGunLab compares prices on 179 Colt products from 7 stores, in 17 categories. Most are lower parts, upper receivers and upper parts. Below are the lowest-priced Colt parts a store has right now in each category; open a category to see them all and filter by length, caliber and more.
Colt lower parts
All 34 lower parts
Ar15a4 Bolt Catch Pin
$2.19 at Brownells
In stock
Ar15a4 Bolt Catch Plunger
$2.19 at Brownells
In stock
Ar15a4 Hammer Pin Retainer
$2.19 at Brownells
In stock
Colt upper receivers
All 30 upper receivers
Ar15A4 Upper Rcvr Assembly, Carbine
$179.99 at MidwayUSA · 2 stores
In stock
No Le6920 Upper Receiver 16 Barrel W/ BCG & Charging Handle
$696.99 at Ammunition Depot · 4 stores
In stock
M4 Le6920 Upper Group 16In With BCG And Sights
$747.99 at OpticsPlanet · 2 stores
In stock Sale
M4 Le6933 Upper Group 11.5in With BCG And Sights
$749.99 at MidwayUSA · 2 stores
In stock
Colt upper parts
All 29 upper parts
Plunger Spring For Colt Ar15a4
$2.19 at Brownells
In stock
Ar15a4 Ejector/Safety Detent Spring
$2.59 at Brownells
In stock
Ar15a4 Extractor Buffer
$3.59 at Brownells
In stock
Ar15a4 Firing Pin Retaining Pin
$3.99 at Brownells
In stock
Colt accessories
All 26 accessories
Ar15A4 Bolt Catch Plunger
$4.89 at Brownells
AR-15 Gas Tube Pin
$4.89 at Brownells
Ar15A4 Buffer Retainer Spring
$4.99 at Brownells
A4 Front Sight Taper Pin Multi Black
$4.99 at Brownells
Colt barrels
All 13 barrels
M4cqb Replacement Barrel Assembly 10.3in
$298.49 at Ammunition Depot · 5 stores
In stock
14.5" M4 Socom Barrel Assembly With Sight Tower
$337.99 at MidwayUSA · 2 stores
In stock
AR15/M16 16" 5.56 M4 Barrel Assembly
$372.99 at MidwayUSA · 2 stores
In stock
Barrel 5.56mm NATO 11.5" 1-7 Black
$408.99 at Brownells · 2 stores
Colt optics & sights
All 12 optics & sights
AR-15 A4 Rear Sight Ball Unfinished
$2.19 at Brownells
In stock
AR-15 A4 Rear Sight Spring Black
$3.09 at Brownells
In stock
AR-15 Adjustable Carrying Handle Assembly Black
$155.99 at MidwayUSA · 2 stores
In stock
Colt AR-15 4x21mm Carry Handle Scope Fine Duplex Reticle
$399.99 at Brownells
In stock
Colt buffer tubes & springs
All 11 buffer tubes & springs
AR-15 Buttcap Spacer
$5.99 at Brownells
In stock
Ar15A4 Buffer Retainer
$6.89 at Brownells
In stock
Ar15a4 Action Spring
$9.99 at Brownells
In stock
Ar15a4 Buffer Assembly
$44.99 at Brownells
In stock
Colt stocks
All 5 stocks
AR-15 A4 Stock Fixed OEM BLK
$41.99 at Brownells
In stock
AR-15 A4 Stowage Stock Assy Fixed OEM BLK
$89.99 at Brownells
In stock
AR-15 Stock Assy Collapsible OEM BLK
$50.99 at Brownells
Colt gas system parts
All 4 gas system parts
AR-15 Gas Tube Stainless Steel Rifle
$27.99 at Brownells
In stock
AR-15 Gas Tube Stainless Steel Carbine
$38.99 at Brownells
Colt handguards & rails
All 3 handguards & rails
Ar15A4 Handguard Assembly
$54.99 at Brownells
AR-15 Match Handguard Free Float Round Aluminum BLK
$55.99 at Brownells
Colt bolt carrier groups
All 3 bolt carrier groups
Ar15A4 Bolt Assembly
$103.99 at MidwayUSA · 2 stores
In stock
Ar6951 Bolt Assembly
$308.99 at Brownells
Colt charging handles
All 3 charging handles
Stripped Ar6721 Charging Handle
$44.99 at Brownells
In stock
Ar6721 Charging Handle
$49.99 at Brownells
Colt magazines
All 2 magazines
Colt 30rds 5.56 Magazine, Matte Black
$29.99 at GunMag Warehouse · 5 stores
In stock
Colt lower receivers
All 1 lower receivers
AR-15 M4 Complete Lower Receiver 5.56mm
$399.99 at Brownells
Colt muzzle devices
All 1 muzzle devicesNo store has one in stock right now. See all 1 with their last prices.
Colt grips
All 1 gripsNo store has one in stock right now. See all 1 with their last prices.
Colt ammo
All 1 ammo
Colt DT Defense, National Match 62 gr Full Metal Jacket .223 Rem Ammo, 50/box
$47.49 at OpticsPlanet · 3 stores
In stock Sale