Build Your Own AR-15 Rifle
Build Your Rifle on Our Virtual Workbench.
Butt Stock & Buffer Tube Kit
Butt Stock & Buffer Tube Kit: ARchitect Complete Mil Spec Butt Stock & Buffer Tube Assembly
- Polymer M4 Style Stock
- Mil Spec Buffer Tube Assembly
- Adjustable 6-Position Buffer Tube
“Fully Adjustable for Even Small-Frame Shooters & Youth. Easily Removable Stock for Simple Upgrades. Stock Upgrades Need to be Mil Spec Design, Not Commercial.”
Made in the USA
Upper Parts Kit
Upper Parts Kit: ARchitect Complete Upper Parts Kit with Charging Handle
- Dust Cover Assembly, Forward Assist Assembly & Charging Handle
- Steel Components – Phosphated, Charging Handle – Hardcoat Black Anodized
“Mil Spec, Industry Standard Components. Will Provide Years of Normal Use.”
Made in the USA
Lower Parts Kit
Lower Parts Kit: ARchitect “ELG” Complete Lower Parts Kit with Fire Control Group
- Includes All Necessary Components to Install Lower Receiver
- All Components Black Phosphate Coated
“Enhanced Longitudinal Grinding on Hammer & Trigger For Crisp, Non-Gritty Trigger Pull.”
Made in the USA
Upper Receiver
Upper Receiver: ARchitect Mil Spec Stripped Upper Receiver
- Forged 7075-T6 Aluminum
- M4 Feed Ramps
- Hardcoat Black Anodized
“Perfect Entry-Level, Low Cost Option, Rugged, Durable & Functional.”
Made in the USA
Bolt Carrier Group (BCG)
Bolt Carrier Group (BCG): ARchitect AR15 Black Nitride Bolt Carrier Group
- M16 Profile 5.56/.223/.300/.350 Legend
- Black Nitride Coated (Including Gas Key)
“Clean Crisp Look, Easy to Clean & Maintain.”
Made in the USA
Gas Tube with Roll Pin
Gas Block
Gas Block: Super Low Profile ARchitect 0.750” Diameter, Non-Adjustable Gas Block
- Set Screw Style
- Black Nitride Coated 4140 Steel
“Set Screw Style for Easy Installation & Alignment on our Pre-Dimpled Barrels, Black Nitride Coated for a Consistent Look with the Barrel”
Made in the USA
Muzzle Device
Three muzzle device options to choose from for your custom AR build. Choose between a Muzzle Brake, Flash Can, or a Flash Hider. Muzzle Brakes reduce recoil and muzzle rise but can be loud, Flash Cans direct blast and sound down-range, and Flash Hiders disperse any fireball and reduce muzzle side and are Industry Standard for most entry-level ARs.
Made in the USA
Handguard
Two Lengths to Choose from for your custom AR build 13” or 15”. There is no functional difference between the different lengths, just a personal preference of the way it looks. The 13” leaves 2.5” of the barrel exposed and the 15” leaves 0.5”. Handguard comes in Black Anodize as the Industry Standard.
“The Easiest to Install System on the Market, No Timing & No Shims, Super Sturdy, Long 2” Barrel Nut for Rigidity, Lightweight, Machined To Magpul MLok Standards, Deep Satin Finish Black Anodize that Should be the Industry Standard.”
Made in the USA
Barrel
Barrel: ARchitect .223 Wylde Gov’t Profile Mi- Length 1/8” Twist Barrel
- 16” Length, Black Nitride Coated 4140 Steel
- 750” Gas Block Seat
- ½” x 28 Threaded for Muzzle Device
- Mid-Length Gas System
“Can Shoot Either Platform Ammo (.223 or 5.56), Most Universal Twist Rate, Good From 50 to 77 Grain Bullets”
Made in the USA
Iron Sight
Flip-up backup iron battle sights from Ozark Armament
How to Build Your AR-15 Rifle
Want your rifle to look like the example above? Simply pick your handguard and muzzle device options and then select your optional add-ons if desired. Items are automatically added to your cart and every build purchase comes with the BYOAR Standard Build Kit, including: Upper Receiver, Upper Parts Kit, Barrel ( .223/5.56 caliber 1:8 twist), Bolt Carrier Group (BCG), Gas Tube with Roll Pin, Gas Block, Butt Stock Kit, and Lower Parts Kit.
Our build kits do not include a lower receiver. You must purchase a lower from a licensed FFL dealer and submit to the proper background checks to receive said lower receiver. Please be aware of all state and local laws as it pertains to building and owning an AR-15 rifle.
BYOAR makes no guarantees or assumptions about your ability to purchase or own an AR-15 lower.
THESE KITS MAY NOT BE COMPLIANT WITH YOUR STATE OR LOCAL LAWS. REFER TO YOUR STATE OR LOCAL LAWS TO SEE IF YOU CAN OWN A STANDARD UN-MODIFIED AR RIFLE. AS THESE KITS ARE STANDARD AND NOT MODIFIED IN ANY WAY TO BE COMPLIANT WITH ANY STATE LAWS.
