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Home » Shop » 300 Blackout AR 15 Rifle Kit – 16″ Parkerized Heavy Barrel, 1:8 Twist Rate with 15″ M-LOK Handguard
300 Blackout AR 15 Rifle Kit - 16" Parkerized Heavy Barrel, 1:8 Twist Rate with 15" M-Lok Handguard
300 Blackout AR 15 Rifle Kit - 16" Parkerized Heavy Barrel, 1:8 Twist Rate with 15" M-Lok Handguard 2
300 Blackout AR 15 Rifle Kit - 16" Parkerized Heavy Barrel, 1:8 Twist Rate with 15" M-Lok Handguard 3
300 Blackout AR 15 Rifle Kit - 16" Parkerized Heavy Barrel, 1:8 Twist Rate with 15" M-Lok Handguard 4
300 Blackout AR 15 Rifle Kit - 16" Parkerized Heavy Barrel, 1:8 Twist Rate with 15" M-Lok Handguard 5
300 Blackout AR 15 Rifle Kit - 16" Parkerized Heavy Barrel, 1:8 Twist Rate with 15" M-Lok Handguard 6
300 Blackout AR 15 Rifle Kit - 16" Parkerized Heavy Barrel, 1:8 Twist Rate with 15" M-Lok Handguard 7
300 Blackout AR 15 Rifle Kit - 16" Parkerized Heavy Barrel, 1:8 Twist Rate with 15" M-Lok Handguard 8

300 Blackout AR 15 Rifle Kit – 16″ Parkerized Heavy Barrel, 1:8 Twist Rate with 15″ M-LOK Handguard

(6 customer reviews)
SKU: 637N-UA300PHB1618P-15M3_AR15-LPK_M4-STOCK_AR15-BTA

$359.99

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Description

Please note: We strive to provide the most accurate photographs of our product wherever possible. Due to availability limitations and supply chain constraints, slight variations of the handguard of this upper assembly may occur in the aesthetics of the skeletonizations in between the M-LOK sections.

For the long-range guys and gals who require a do-it-all AR with a .30-cal, this 300 Blackout build kit provides a lightweight rifle that can shoot suppressed or un-suppressed with supers and subs all day (and night, for the hogs). With a 16″ barrel forged from 4150 chrome moly vanadium with a 1:8 twist providing optimal velocity and stability for all grains and loads, this rifle kit will allow you to achieve as much performance as your .300BLK ammo can give you.

What’s Included

This kit is not a firearm. It includes an assembled upper receiver, bolt carrier group, lower parts kit, and buffer assembly with buttstock. 

300 BLK Rifle Kit Specs

Barreled uppers are assembled in-house before shipment.

Barrel

  • Chamber: .300 AAC Blackout
  • Contour: Heavy
  • Length: 16”
  • Twist Rate: 1:8
  • Gas System: Pistol
  • Gas Port: 0.750”
  • Gas Hole Dia.: 0.070”
  • Muzzle Threads: 5/8×24
  • Feed Ramps: M4
  • Material: 4150 CMV
  • Finish: Parkerized
  • Process: Button Rifled
  • Lining: None
  • Extension: M4
  • Muzzle: A2 “Birdcage” Flash Hider

Handguard

  • Attachment System: 15″ M-LOK
  • Finish: Type III Hardcoat Anodized (Mil-Spec)
  • Top Rail: M1913 Picatinny
  • Material: Billet 6061-T6 Aluminum
  • Attachment: Barrel Nut 

Upper Receiver

  • Profile: M4 Flattop
  • Material: Forged 7075-T6 Aluminum
  • Finish: Type III Hardcoat Anodized (Mil-Spec)

Bolt Carrier Group

  • Profile: M16/Full-Auto
  • Steel: 9310 Tool, HPT/MPI-tested
  • Exterior: Black Nitride
  • Interior: Black Nitride
  • Gas Key: Staked
  • Charging Handle: Included

Lower Receiver Parts

  • Buffer System: Mil-spec, Carbine
  • Buttstock: Mil-spec, M4-type
  • Parts Kit: Mil-spec, single-stage

Lower receiver not included.

Specs

Weight 6.88 lbs
Dimensions 28 × 6 × 6 in
Barrel Size

16"
Twist Rate

1/8
Barrel Finish

Parkerized
Caliber

.300 AAC Blackout
Handguard Type

Free-float
Gas System Length

Pistol-length

6 reviews for 300 Blackout AR 15 Rifle Kit – 16″ Parkerized Heavy Barrel, 1:8 Twist Rate with 15″ M-LOK Handguard

  1. John –

    Reliable over all

    They had fast shipping the part are good quality highly recommended to anyone who’s looking to build a AR

  2. Kevin Jones –

    Too good of a deal to pass on. Works great!

    This rifle is a great buy. The price is very fair and it fits together nicely. I took it to the range and it cycles a full 30 round mag without a single jam. I re oiled it after one full mag and the next Day I cycled another 30 rounds. I’m recommending this kit with 5 stars bc I’m completely satisfied and looking forward to sighting in my new scope on it tomorrow!

  3. Keith M –

    Get it now. update

    Great buy, fit like a glove, everything is spec. Get it now before I buy the rest. Next one gets painted. 400 RDS not a difference in grouping but did relube after 200.

  4. Cody Ellis –

    300 blackout

    Fast service and great assembly. Went together perfectly.

  5. Keith McAteer –

    Ill BE BACK!

    No doubt great buy, no nicks, checked torque, lower milling rn. Fast delivery. Did about 2 wks research on dyi best deals for sure and more in stock than say 5d tactical. Wont be disappointed.

  6. Raymond Schulz –

    Can't be beat

    For the price of the kit you can’t beat it runs flawless liked it so mutch bought 2 of them in 300 and one in 7.62×39 witch that kit come with enhanced firing pin already installed wits is amazing no buffing needing on feed rails already ran 90+ rounds thure eatch upper no issues will be back for more thanky you again for the great products at a unbeatable price

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