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Complete Rifle

Upper Receiver

Barrels

Barrels

Gas System

Gas Tube
Gas Block

Furniture

Foregrip
Muzzle Devices
Safety
Forward Assist
Dust Cover
Bolt Catch
Magazine Release
Trigger Guard
Takedown Pin

Stock & Buffer Parts

Stock & Pistol Braces
End Plate
Buffer
Buffer Tube Assembly
Buffer Tube
Buffer Spring
Stock Adapter

Accessories

Suppressors
Lights
Lasers
Switches

Optics

Optic
Rifle Scope
Optic Mount
Magnifiers

Sights

Iron Sights
Front Sight
Rear Sight

Ammo Finder

Popular Calibers

5.56 NATO .223 Rem .308 Win 9mm .300 Blackout 7.62x39mm .45 ACP 12 Gauge

All Calibers →

Rifle — Popular

5.56 NATO
.223 Rem
.308 Win
.300 Blackout
6.5 Creedmoor
.30-06 Springfield
.270 Win
7.62x39mm
.300 Win Mag
.243 Win

Rifle — More

.300 WSM
6.5 PRC
.338 Lapua
7mm Rem Mag
7mm PRC
6mm Creedmoor
6mm ARC
6.5 Grendel
6.8 SPC
.350 Legend
.450 Bushmaster
.458 SOCOM
.224 Valkyrie
.22-250 Rem

Rifle — Specialty

.30-30 Win
.45-70 Govt
.204 Ruger
.50 BMG
.303 British
7.62x54R
.338 Federal
8mm Mauser
.30-40 Krag
.22 Creedmoor
5.7x28mm

Handgun

9mm
.45 ACP
.40 S&W
.380 ACP
10mm Auto
.357 Magnum
.38 Special
.357 SIG
.44 Magnum
.44 Special
.45 Colt
.38 Super
.32 ACP
.25 ACP

Shotgun

12 Gauge
20 Gauge
16 Gauge
28 Gauge
.410 Bore

Rimfire

.22 LR
.22 WMR
.17 HMR

Brands Completed Builds Trending Products Guides 🎁 Giveaway

Home/Builds

Completed AR Builds

Use our AR-15 Builder to assemble your perfect rifle with real-time pricing.

Start a New AR-15 Build

Showing builds that include Spro USA Sprinco USA Spring KIT- Xp Buffer Spring W/ Dual Extractor Spring Set

Platform

AR-15(8)AR-9(1)

Brand

Aero Precision(4)Colt(1)LMT(1)PSA(1)KE Arms(1)Sharps Bros(1)

Caliber

5.56 NATO(8)9mm(1)

9 builds

30" LMT clone

Built by Reddhulk2016

5/23/2025

$3293.50

14.5" SBR

Built by Beast114

11/1/2025

$1514.76

My 5.56 build

Built by joshs256_ar

12/25/2023

$5295.54

Carbine 14.5" 9mm

Built by zMoppskiz

2/24/2026

$1674.95

8.5" ke arms clone

Built by xz3ro

2/23/2026

$3840.20

16.5" recce

Built by xCJarrard

5/10/2026

$1851.84

PDW 17.7" 5.56

Built by cruicifix

5/7/2026

$2788.05

Aero Precision 16" 5.56

Built by Maverick_491

5/7/2026

$3162.53

home defense 10.5" 5.56

Built by d1ll0nschulz16

5/7/2026

$2583.12

GunPartPicker

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GunPartPicker is an independent parts compatibility, price comparison, and aggregator utility. We do not sell, manufacture, warehouse, or ship firearms, ammunition, or regulated accessories. All purchases are between you and the third party retailer. You are responsible for ensuring builds and purchases comply with federal, state, and local law, including the National Firearms Act. This tool is for informational purposes only and is not legal, gunsmithing, or safety advice.

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AR15 Builder Glock Builder

Barrels

Barrels

Gas System

Gas Tube
Gas Block

Furniture

Foregrip
Muzzle Devices
Safety
Forward Assist
Dust Cover
Bolt Catch
Magazine Release
Trigger Guard
Takedown Pin

Stock & Buffer Parts

Stock & Pistol Braces
End Plate
Buffer
Buffer Tube Assembly
Buffer Tube
Buffer Spring
Stock Adapter

Accessories

Suppressors
Lights
Lasers
Switches

Optics

Optic
Rifle Scope
Optic Mount
Magnifiers

Sights

Iron Sights
Front Sight
Rear Sight

Ammo Finder

Popular Calibers

5.56 NATO .223 Rem .308 Win 9mm .300 Blackout 7.62x39mm .45 ACP 12 Gauge

All Calibers →

Rifle — Popular

5.56 NATO
.223 Rem
.308 Win
.300 Blackout
6.5 Creedmoor
.30-06 Springfield
.270 Win
7.62x39mm
.300 Win Mag
.243 Win

Rifle — More

.300 WSM
6.5 PRC
.338 Lapua
7mm Rem Mag
7mm PRC
6mm Creedmoor
6mm ARC
6.5 Grendel
6.8 SPC
.350 Legend
.450 Bushmaster
.458 SOCOM
.224 Valkyrie
.22-250 Rem

Rifle — Specialty

.30-30 Win
.45-70 Govt
.204 Ruger
.50 BMG
.303 British
7.62x54R
.338 Federal
8mm Mauser
.30-40 Krag
.22 Creedmoor
5.7x28mm

Handgun

9mm
.45 ACP
.40 S&W
.380 ACP
10mm Auto
.357 Magnum
.38 Special
.357 SIG
.44 Magnum
.44 Special
.45 Colt
.38 Super
.32 ACP
.25 ACP

Shotgun

12 Gauge
20 Gauge
16 Gauge
28 Gauge
.410 Bore

Rimfire

.22 LR
.22 WMR
.17 HMR

Brands Completed Builds Trending Products Guides 🎁 Giveaway

Home/Builds

Completed AR Builds

Use our AR-15 Builder to assemble your perfect rifle with real-time pricing.

Start a New AR-15 Build

Showing builds that include Spro USA Sprinco USA Spring KIT- Xp Buffer Spring W/ Dual Extractor Spring Set

Platform

AR-15(8)AR-9(1)

Brand

Aero Precision(4)Colt(1)LMT(1)PSA(1)KE Arms(1)Sharps Bros(1)

Caliber

5.56 NATO(8)9mm(1)

9 builds

30" LMT clone

Built by Reddhulk2016

5/23/2025

$3293.50

14.5" SBR

Built by Beast114

11/1/2025

$1514.76

My 5.56 build

Built by joshs256_ar

12/25/2023

$5295.54

Carbine 14.5" 9mm

Built by zMoppskiz

2/24/2026

$1674.95

8.5" ke arms clone

Built by xz3ro

2/23/2026

$3840.20

16.5" recce

Built by xCJarrard

5/10/2026

$1851.84

PDW 17.7" 5.56

Built by cruicifix

5/7/2026

$2788.05

Aero Precision 16" 5.56

Built by Maverick_491

5/7/2026

$3162.53

home defense 10.5" 5.56

Built by d1ll0nschulz16

5/7/2026

$2583.12

GunPartPicker

Plan an AR build, check compatibility, and compare prices across nearly 30 retailers.

Build

AR Builder
Glock Builder
Browse Parts
Saved Builds
Community Builds
Trending Parts

Research

Guides
Gun Industry Insights
Ammo Prices
Ammo Finder
Gun Laws by State

Brands and Partners

Brands
All Brands A to Z
Advertise With Us

Company

About
Contact
Giveaway

Account

Loading...

GunPartPicker is an independent parts compatibility, price comparison, and aggregator utility. We do not sell, manufacture, warehouse, or ship firearms, ammunition, or regulated accessories. All purchases are between you and the third party retailer. You are responsible for ensuring builds and purchases comply with federal, state, and local law, including the National Firearms Act. This tool is for informational purposes only and is not legal, gunsmithing, or safety advice.

Terms
Privacy
Shipping
Affiliate Disclosure
Giveaway Terms