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AR-15 PISTON UPPERS
300 BLACKOUT PISTON UPPERS
10" 300BLK Complete Low Profile Piston Upper with A.P. 9" M-Lok Handguard
10' 300BLK Complete Low Profile Piston Upper with A.P. 9' M-Lok Handguard
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10" 300BLK Complete Low Profile Piston Upper with A.P. 9" M-Lok Handguard
Your Price:
$1,059.99
Questions about this item? Ask here.
Part Number:
1607243
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 10" 300BLK Complete Low Profile Piston Upper with 9" Aero Precision Enhanced M-Lok 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:
✓
Enhanced M4 Upper Receiver Specifically Designed for 30 Caliber Size Bullets:
✓
Piston Bolt Carrier Law Folder Compatible :
X
Complete Upper Weight :
3 lbs 8.5 oz.
View all Q&A
×
Questions and Answers
Q:
Part Number: 1607243. I purchased one of these a while back. My question is about the BCG and if it is full auto rated (for binary setup). If it isn’t, is there a compatible piston driven BCG that you can recommend.
Asked by:
Danel Kalloo
- 5/18/2023
A:
All of our bcg are m14 for full auto.
Answer provided by:
Administrator (5/23/2023)
Q:
what is the bolt material and finish? what is the carrier material and finish? is the carrier chrome lined for the bolt?
Asked by:
Fred Evers
- 9/1/2022
A:
Because our carriers are NiB we do not need to chrome line them. Here our the specs:
PISTON BOLT CARRIER SPECS:
Bolt Carrier Material, 8620
Bolt Carrier Nickel Boron Coating
Bolt body produced from AISI 9310 VAR (Vacuum Arc Remelt) and Nitrided, Extractor produced from MIL-S-5000 steel and vacuum hardened
Answer provided by:
Black Rifle Arms Sales Team (9/1/2022)
Q:
I will be shooting mostly suppressed and subsonic ammo, is there any adjustment for the piston or is it needed and what manufactures barrel do you use?
Asked by:
Bryan Hollingsworth
- 2/12/2022
A:
Our 300BLK was designed to run optimally between super and subs without the need to adjust. Our barrels are manufactured by Shaw Barrels for us according to our specs.
Answer provided by:
Administrator (2/17/2022)
Q:
Why isnt this compatible with law tactical folder? Is it specific to your BCG?
Asked by:
Michael Domer
- 12/17/2020
A:
The Law Tactical golder has a part that has to be inserted in the bolt carrier and because we use a polymer insert it makes our bolt carriers incompatible with any folders.
Answer provided by:
Black Rifle Arms Sales Team (12/19/2020)
Q:
Is there any other rails that can fit this?
Asked by:
Jake Simon
- 6/19/2020
A:
No, we designed our proprietary barrel to use exclusively with Aero Precision Enhanced Hanguards.
Answer provided by:
Administrator (6/21/2020)
Q:
Does these have Pistol length gas system? Thank you.
Asked by:
RL Bone
- 6/9/2020
A:
Yes these uppers have a pistol length gas system.
Answer provided by:
Customer Service (6/9/2020)
Q:
What forend systems is this compatible with?
Asked by:
Dane
- 11/30/2019
A:
We specifically designed this particular piston system to fit with the Aero Precision Enhanced handguards using our proprietary steel piston barrel nut. Since we didn't design this piston system to fit with other handguards we are unaware of any other handguards that are compatible.
Answer provided by:
Administrator (11/30/2019)
Q:
What buffer is reccomened with this upper?
Asked by:
Maxwell
- 9/18/2019
A:
For our 300BLK Piston Uppers, we recommend H2 Buffer and Standard Carbine Spring. https://www.blackriflearms.com/FAQ_ep_55.html
Answer provided by:
Charles Cassels (9/18/2019)
Q:
Can you use a left or right sided upper side charger with the. 300 BO and more importantly to me the Grendel which I am doing ny best to save up to buy. Thank you -Hunter
Asked by:
Hunterdl
- 5/25/2019
A:
Our 300BLK you can't use a side charger because we have to build our 300BLK utilizing our proprietary upper receivers which use a rocker bushing in order for one to remove the piston system due to short gas length. To see this feature please click on link: https://youtu.be/fdvbPdPm-Xw The 6.5 Grendels can use side charging upper receivers, we will be adding more Grendel uppers to the product lineup over the next couple of weeks.
Answer provided by:
Administrator (5/27/2019)
Q:
What makes this work as a non regulated system for both suppressed and unsuppressed, subsonic and super? Very apprehensive to spend this much on a system that I cannot find much information and reviews on.
Asked by:
Spike
- 4/17/2017
A:
All of our piston systems are designed specifically for each caliber, and then the regulators gas ports are specifically sized for the barrel and gas system length. We don't do any one sizes fits all because it is impossible for any one gas system to deliver the highest degree of performance that we demand of anything we build. What you see on our website is only a small part of what we do. We are primarily an R&D company that is 100% focus developing the most reliable and innovative firearms possible. It is not surprising that you are not finding a lot of information about us because we have devoted all of our resources to R&D and special projects developing next generation small arms. All of our retail sales are by word of mouth because we do not advertise. If you want to speak with me for a more detailed Q&A give me a call at 386.428.7960
Answer provided by:
Administrator (4/18/2017)
Questions about this item? Ask here.
Black Rifle Arms
®
AR-15 10" 300BLK Complete Low Profile Piston Upper with 9" Aero Precision Enhanced M-Lok Handguard
Our 300BLK complete upper is a low profile self-regulating gas piston system that was designed to shoot supersonic and subsonic ammunition 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:
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: 10"
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
PISTON BOLT CARRIER SPECS:
Bolt Carrier Material, 8620
Bolt Carrier Nickel Boron Coating
Standard Firing Pin
Bolt body produced from AISI 9310 VAR (Vacuum Arc Remelt), the highest standard bolt material made
Machined completely in one operation; this eliminates tolerance and repeatability issues that arise from the multiple fixturing processes used by other manufacturers
Enhanced Design for utmost reliability
Tightly controlled proprietary heat treat process to accurately control cast depth and core hardness
Extractor produced from MIL-S-5000 steel and vacuum hardened
NSCW Crane Division extractor upgraded with Viton® O-ring, 5 coil spring, and plunger
Cam Pin, Melonite QPQ
Firing Pin Retaining Pin
Oversized Size Integrated Polymer Buffer
Eliminates Carrier Tilt
Eliminates metal on metal contact
Eliminates contact between the hardened steel carrier, aluminum receiver extension and buffer
Eliminates hardened steel carrier as it transitions between upper and lower receivers
Self-lubricating, shock-absorbing and has seven times the abrasion resistance of carbon steel
Reduction in felt recoil and vibration
UPPER RECEIVER SPECS:
Complete upper with A2 flash hider OAL is 18 3/8".
Complete upper without A2 flash hider OAL is 17 3/16"
Weight including BCG:
3 lbs. 5.6 oz.
Shipping Information or Requirements:
NO FFL REQUIRED - Ships Directly to Customer: ?
REQUIRES SIGNATURE UPON DELIVERY: ?
ALL NFA RULES APPLY: ?
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