8' 300BLK Complete Low Profile Piston Upper with A.P. 7' Quad Handguard

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8" 300BLK Complete Low Profile Piston Upper with A.P. 7" Quad Handguard

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8" 300BLK Complete Low Profile Piston Upper with A.P. 7" Quad Handguard

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Part Number: 1803143

Availability: IN-STOCK | BUILD TO ORDER

Choose Options

SIGHT OPTIONS

CHARGING HANDLE OPTIONS

MUZZLE DEVICE OPTIONS

SPARE BOLT CARRIER BUFFER OPTIONS

CERAKOTE OPTIONS - CERAKOTE OPTION ADDS 1 to 3 WEEKS TO A BUILD

CERAKOTE PATTERN

CERAKOTE COLOR - 1 COLOR OPTION

CERAKOTE COLOR - 2 COLORS OPTIONAL

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Description
Product Features
Questions and Answers
Product Specifications
Ship Requirements

Black Rifle Arms^® AR-15 8" 300BLK Complete Low Profile Piston Upper with 7" Aero Precision Enhanced Quad Handguard

300BLK Piston Upper, 300 Blackout Piston Upper

7075-T6 Aluminum Forging : ✓
Piston Upper Fits Any Mil-Spec AR-15 Lower: ✓
One Piece Bolt Carrier Group with Buffer Technology: ✓
Aero Precision Enhanced Quad Handguard with Hardened Steel Piston Barrel Nut: ✓
Piston Bolt Carrier Law Folder Compatible : X

Q: Does this have an adjustable gasblock?

Asked by: Waylon Wilson - 2/3/2021

No Answers have been submitted yet.

Q: Can I get this 8" 300 BLK receiver with a BCG that is compatible with a law tactical folder?

Asked by: Jae Jung - 12/18/2020

A: We don't have any plans to make modifications to our Bolt Carrier to allow for compatibility with Folding Stocks. Our polymer insert is in place to prevent carrier tilt.

Answer provided by: Black Rifle Arms Sales Team (12/21/2020)

Q: Any eta on when this item might be in stock again? I was told you are waiting on barrels. Is that correct? If so, is there anyway to purchase this item that does not include a barrel, and would have to assemble upon purchasing my own barrel?

Asked by: Zac - 4/1/2020

A: It's going to be a couple of months. The barrel blanks we use are not available due to the high demand of firearm parts. We have the order in for the barrel blanks but it's going to take a little while to get then manufacture them. If you have a barrel you like that is available and you want to drop ship it to us for a build off of it please let us know. We can look at the barrel to make sure it meets our specs .750" gas block journal with the gas block journal being 1.98" long.

Answer provided by: Charles Cassels (4/1/2020)

Q: Was curious what the estimated timeframe for availability?

Asked by: Zac Bletz - 3/10/2020

A: Our current timeframe is 5 to 8 weeks. We are going to machine more barrels as this upper has become one of our top sellers. Sorry for the inconvenience, many are signing up for the Waiting List which will notify them through email as soon as they go back in stock.

Answer provided by: Charles Cassels (3/12/2020)

Questions about this item? Ask here.

Black Rifle Arms^® AR-15 8" 300BLK Complete Low Profile Piston Upper with 7" Aero Precision Enhanced Quad Handguard

Our 300BLK complete upper is a low profile self-regulating gas piston system that was designed to shoot subsonic optimally with a silencer and supersonic with or without a silencer, and utilizes a standard AR-15 carbine buffer and spring for reliable performance.

HANDGUARD SPECS:

1-pc Free Float Design
Built-in Anti-Rotation Tabs
Scalloped Rails
Continuous Top Rail
1.72" Inside Diameter (from barrel nut to forward end)

Fits Most Muzzle Devices and 1.5" Suppressors

Gen 2 Features:

Eliminated Half the 3, 6 and 9 O'Clock Picatinny Rails

Reduces Weight
Provides A More Ergonomics Design in the Rear Gripping Area

Quick Disconnect Sling Socket at 3, 6 and 9 O'clock Positions
Additional Milling Along Flats to Aid with Gripping and Add Visual Appeal
New Profile for Continuous Picatinny Top Rail

Barrel Specs:

Barrel Manufacturer: Black Rifle Arms
Caliber: 300BLK
Length: 8"
Gas Length: Pistol
Material: 4150 CrMoV 11595E Steel
Profile: Medium Tactical
1/7 Twist
5/8-24 Threaded Muzzle
Gas Block Journal: 750"
Nitride: Inside and Out
Barrel Extension: NiB
Feed Ramp: Enhanced M4 Barrel Extension Specifically Designed for 30 Caliber Size Bullets
Barrel Extension Installed and Torqued After Nitride Finish: Yes
Rifle Barrel Blanks are Air Gauged to ± .00002"

Air Gauging Ensures that Rifle Barrel Blanks Feature Perfect Bore Diameter Uniformity for Maximum Accuracy

Shipping Information or Requirements:

NO FFL REQUIRED - Ships Directly to Customer: ?

REQUIRES SIGNATURE UPON DELIVERY: ?

ALL NFA RULES APPLY: ?

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CHECKOUT & SHIPPING DESTINATIONS

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SHIPPING TIMES

8" 300BLK Complete Low Profile Piston Upper with A.P. 7" Quad Handguard

Choose Options

Q: Does this have an adjustable gasblock?

Q: Can I get this 8" 300 BLK receiver with a BCG that is compatible with a law tactical folder?

Q: Any eta on when this item might be in stock again? I was told you are waiting on barrels. Is that correct? If so, is there anyway to purchase this item that does not include a barrel, and would have to assemble upon purchasing my own barrel?

Q: Was curious what the estimated timeframe for availability?

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