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AR-15 PISTON UPPERS
300 BLACKOUT PISTON UPPERS
8" 300BLK Complete Low Profile Piston Upper with A.P. 12" M-Lok Handguard
8' 300BLK Complete Low Profile Piston Upper with A.P. 12' M-Lok Handguard
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8" 300BLK Complete Low Profile Piston Upper with A.P. 12" M-Lok Handguard
Your Price:
$1,069.99
Questions about this item? Ask here.
Part Number:
1901121
Availability:
IN-STOCK | BUILD TO ORDER
Choose Options
SIGHT OPTIONS
SIGHT OPTIONS
No Sights
Magpul MBUS Pro Flip Up Front and Rear Sights (+$195.99)
CHARGING HANDLE OPTIONS
CHARGING HANDLE OPTIONS
Mil-Spec Charging Handle
Remove Mil-Spec Charging Handle (-$15.00)
Add Radian Raptor Ambidextrous Charging Handle - BLK (+$74.00)
Add Radian Raptor Ambidextrous Charging Handle - FDE/BLK (+$74.00)
Add Radian Raptor SD Ambidextrous Charging Handle - BLK (+$94.00)
Add Radian Raptor SD Ambidextrous Charging Handle - FDE/BLK (+$94.00)
MUZZLE DEVICE OPTIONS
MUZZLE DEVICE OPTIONS
Remove A2 Flash Hider and Crush Washer (-$14.00)
Add RM-30 Muzzle Device (+$50.00)
SPARE BOLT CARRIER BUFFER OPTIONS
SPARE BOLT CARRIER BUFFER OPTIONS
No
Yes (+$10.00)
CERAKOTE OPTIONS - CERAKOTE OPTION ADDS 1 to 3 WEEKS TO A BUILD
CERAKOTE OPTIONS - CERAKOTE OPTION ADDS 1 to 3 WEEKS TO A BUILD
No Cerakote
Handguard (+$65.00)
Upper Receiver (+$75.00)
Upper Receiver, Forward Assist and Dust Cover (+$100.00)
Upper Receiver, Forward Assist, Dust Cover and Charging Handle (+$120.00)
Handguard and Upper Receiver (+$145.00)
Handguard, Upper Receiver and Charging Handle (+$175.00)
Handguard, Upper Receiver, Forward Assist and Dust Cover (+$185.00)
Handguard, Upper Receiver, Charging Handle, Forward Assist and Dust Cover (+$200.00)
CERAKOTE PATTERN
CERAKOTE PATTERN
Not Applicable
Solid - 1 Cerakote Color Needed
Battleworn - 2 Cerakote Colors Needed (+$60.00)
CERAKOTE COLOR - 1 COLOR OPTION
Not Applicable
Blue Titanium
Titanium
Tungsten
Stainless
Cobalt
Midnight Bronze
Burnt Bronze
Satin Aluminum
Tactical Grey
Sniper Grey
Smith Wesson Grey
Noveske Bazooka Green
Glock FDE
Coyote Tan
Desert Sand
Magpul FDE
Magpul Foliage Green
Magpul OD Green
Sky Blue
High Vis Orange
USMC Red
Crimson Red
Gold
Bright White
Blackout
Graphite Black
CERAKOTE COLOR - 2 COLORS OPTIONAL
Not Applicable
Blue Titanium (+$25.00)
Titanium (+$25.00)
Tungsten (+$25.00)
Stainless (+$25.00)
Cobalt (+$25.00)
Midnight Bronze (+$25.00)
Burnt Bronze (+$25.00)
Satin Aluminum (+$25.00)
Tactical Grey (+$25.00)
Sniper Grey (+$25.00)
Smith Wesson Grey (+$25.00)
Noveske Bazooka Green (+$25.00)
Glock FDE (+$25.00)
Coyote Tan (+$25.00)
Desert Sand (+$25.00)
Magpul FDE (+$25.00)
Magpul Foliage Green (+$25.00)
Magpul OD Green (+$25.00)
Sky Blue (+$25.00)
High Vis Orange (+$25.00)
USMC Red
Crimson Red (+$25.00)
Gold (+$25.00)
Bright White (+$25.00)
Blackout (+$25.00)
Graphite Black (+$25.00)
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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 Aero Precision 12" Enhanced M-Lok Handguard
Caution: If using a handguard that extends beyond the barrel a suppressor or blast shield must be used to prevent discharge gasses from blasting through the handguard
7075-T6 Aluminum Forging :
✓
Piston Upper Fits Any Mil-Spec AR-15 Lower:
✓
One Piece Bolt Carrier Group with Buffer Technology:
✓
Aero Precision Enhanced M-Lok Handguard with Hardened Steel Piston Barrel Nut:
✓
Piston Bolt Carrier Law Folder Compatible :
X
Q:
Hello, I’m looking to build a piston 300 blackout truck gun, and this seems to check all of the boxes. Is the piston gas system adjustable at all? I’m relatively new to piston systems so please excuse my ignorance. Thank you! Lyman
Asked by:
Lyman Gillen
- 3/23/2023
A:
We do not regulate our 300BLK. You can read more at our blog as to why the 300BLK do not need to be regulated: https://www.blackriflearms.com/Our-300BLK-dont-need-to-be-regulatedSEE-WHY_b_14.html
Answer provided by:
Administrator (3/31/2023)
Q:
When piston upper is in place, what can I put in place of the buffer? What type of collaspable but stock is available? I am wanting to build a backpack weapon to carry in my job.
Asked by:
Warrior Ammo
- 1/16/2023
A:
You could use the Strikes Industries PDW Viper stock and utilize our Enhanced Buffer, Spring & Buffer Tube Assemblies for Viper PDW Stocks & Braces - Gen 2. It's what we use and share a pic of our set up; however, the buffer tube in the page picture shows the Gen1 buffer tube we have since changed the design but hold the same tolerances. https://www.blackriflearms.com/Enhanced-Buffer-Spring-Buffer-Tube-Assemblies-for-Viper-PDW-Stocks-Braces--Gen-2_p_732.html
Answer provided by:
Administrator (1/16/2023)
Q:
Apologies to add to what I'm sure is an overwhelming number of messages and queries about stock and out of stock items, but I'm interested in purchasing two x 8" .300 Blackout Piston Complete Uppers w/12" Handguards (one of each or two of the same of either 12" handguard styles is fine). I tried to find the information on your website but was unable. Any ETA on restock?
Asked by:
Hunter
- 8/11/2021
A:
We are expecting restock of all our uppers around end of summer. Barrels are in production now and waiting on nitride and barrel extensions are at NiB waiting on plating so almost there.
Answer provided by:
Administrator (8/12/2021)
Q:
I am interested in your gas piston 8" .300 Upper. Who's BCG do you use? Is it full auto rated? Who's gas block do you use ? Is it adjustable? I plan to use a Fostech Echo II binary trigger Any issues? I plan to suppress it. Isues? Do you have a recommendation for a suppressor? Thanks Dave
Asked by:
Dave
- 12/20/2020
A:
Our piston systems are patented by our owner, so our bolt carriers, gas blocks etc are manufactured by us. In a 300BLK you do not need to regulate the system. All of our piston systems can run full auto (we R&D, etc only using full auto and we suppress also). All our systems can be used full auto with no issues. Charles uses OSS and Dead Air Silencers. You may learn more about our 300BLK by going to our piston video page and scrolling down to 300BLK Piston Video: https://blackriflearms.com/PISTON-VIDEOS_ep_40.html
Answer provided by:
Black Rifle Arms Sales Team (12/21/2020)
Questions about this item? Ask here.
Black Rifle Arms
®
AR-15 8" 300BLK Complete Low Profile Piston Upper with Aero Precision 12" Enhanced M-Lok Handguard
Caution: If using a handguard that extends beyond the barrel a suppressor or blast shield must be used to prevent discharge gasses from blasting through the 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
UPPER RECEIVER SPECS:
Complete Upper OAL: 20"
Weight including BCG: 3 lbs. 6.5 oz.
Shipping Information or Requirements:
NO FFL REQUIRED - Ships Directly to Customer: ?
REQUIRES SIGNATURE UPON DELIVERY: ?
ALL NFA RULES APPLY: ?
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