J
Josephhayes21-5
1 / 4
LMT 12.5" 300 Blackout AR-15 Build
With the BCM MK2 Laser Engraved upper receiver, Criterion 12.5" .223 Wylde barrel and BCM Gunfighter Quad Rails handguard.
Updated
12 of 12 core parts · complete
27 parts|$3143.49(25/27 priced)
Platform:AR-15Caliber:300 BlackoutOverall Length:12.5"Lower:LMT
J
Josephhayes21-51 / 4
LMT 12.5" 300 Blackout AR-15 Build
With the BCM MK2 Laser Engraved upper receiver, Criterion 12.5" .223 Wylde barrel and BCM Gunfighter Quad Rails handguard.
Updated
12 of 12 core parts · complete
Shop the parts$3143.49(25/27 priced)
AR-15 Specs
Platform
AR-15
Caliber
300 Blackout
Overall Length
12.5"
Lower
LMT
AR-15 Parts List(27 parts)
Est. Total
$3143.49
Lower Receiver
Controls: Ambidextrous
Trigger Pin: .154
Finish: Hardcoat Anodized
Assembly: Stripped
Platform: AR-15
Upper Receiver
$129.95Out of Stock
Assembly: Stripped
Receiver Type: A4
Color: Black
Finish: Hardcoat Anodized
Barrel
$313.49Out of Stock
Twist Rate: 1:8
Caliber: .223 Wylde
Barrel Length: 12.5
Finish: Phosphate
Handguard
Handguard Length: 9
Color: Black
Mounting Interface: Picatinny
Construction Type: Free-Float
Charging Handle
Hand: Ambidextrous
Finish: Hardcoat Anodized
Color: OD Green
Material: 7075-T6 Aluminum
Bolt Carrier Group
$199.00In Stock
Caliber: Multi
Finish: Black
Style: M16
Trigger
$250.00In Stock
Material: Steel
Platform: AR-15
Type: Two-Stage
Gas Tube
$18.99Out of Stock
Material: Steel
Finish: Nitride
Gas System Length: Mid-Length
Gas Block
Gas Block Diameter: .625
Profile: Low Profile
Finish: Phosphate
Adjustable: No
Material: Steel
Pistol Grip
$14.97In Stock
Color: Gray
Grip Style: Standard
Material: Polymer
Foregrip
$23.99In Stock
Grip Type: Angled
Color: Black
Storage: No
Mounting Interface: Picatinny
Muzzle Device
Caliber: 300 Blackout
Thread Pitch: 5/8x24
Muzzle Device Type: Suppressor Mount
Safety
Throw Angle: Configurable
Color: Black
Material: 7075-T6 Aluminum
Finish: Nitride
Forward Assist
$16.95In Stock
Assembly: Complete
Color: Black
Style: Standard
Material: Steel
Dust Cover
Color: Black
Material: Steel
Bolt Catch
Finish: Phosphate
Material: Steel
Type: Maritime
Color: Black
Magazine Release
Color: Black
Finish: Nitride
Trigger Guard
Material: 7075-T6 Aluminum
Color: Black
Finish: Hardcoat Anodized
Takedown Pin
Pin Type: Pin Set
Stock
$47.99In Stock
Material: Polymer
Color: Black
Tube Spec: Mil-Spec
Stock Type: Collapsible
End Plate
Type: QD End Plate
Color: Black
Material: Steel
Buffer Assembly
$161.00In Stock
Color: Black
Material: Aluminum
Assembly: Parts Kit
Buffer Tube Spec: Mil-Spec
Finish: Hardcoat Anodized
Buffer
Assembly: Spring Only
Buffer Tube Spec: Mil-Spec
Buffer Tube Type: Carbine
Buffer Tube
Assembly: Buffer Only
Buffer Tube Spec: Mil-Spec
Buffer Spring
Length: Rifle
Suppressor
$997.90In Stock
Caliber: 5.56 NATO
Color: Black
Mount Type: ASR
Iron Sights
Style: Polymer
Fixed Folding: Folding
Color: Black
Position: Rear
Illuminated: No
Estimated Build Total(25 of 27 parts priced)
$3143.49Other Builds Using These Parts
Browse all builds →Community builds that share parts with this one — compare specs and pricing
| Build | Shared | Total |
|---|---|---|
| First Build (Mostly Top Recommended) | 2 parts | $3639.34 |
 | 1 part | $2630.88 |
 | 1 part | $6819.32 |
 | 1 part | $2283.99 |
 | 1 part | $3706.83 |
 | 1 part | $6450.14 |
 | 1 part | $3645.10 |
| meta? | 1 part | $2350.35 |