Looking for the best Gas Piston System. Look no further! Black Rifle Arms has developed the most innovated Gas Piston Systems, best bolt carrier groups, enhanced firing pins, extended firing pins, gas piston, piston, piston uppers, 300BLK Piston Uppers

HURRICANE ALERT! NO MORE ORDERS WILL SHIP TODAY OR THURSDAY! WE ARE NOW CLOSED! WE ARE IN AN EVACUATION ZONE.

ALL ORDERS THAT COME IN WILL SHIP OUT HOPEFULLY FRIDAY OR SATURDAY IF SHIPPING CARRIERS ARE RUNNING!

ALL ORDERS $500+ WILL REQUIRE INSURANCE AND SIGNATURE CONFIRMATION!

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CHECKOUT MINUMUM & SHIPPING DESTINATIONS

MINIMUM TO CHECKOUT $5.00
WE SHIP WITHIN THE USA
GUAM & PUERTO RICO

TIMEFRAME TO FULFILL YOUR ORDER

SMALL COMPONENTS: 1 to 2 Business Days
COMPLETE UPPERS 1 to 2 WEEKS
Add Additional 1 to 2 Weeks for Custom Cerakote

AVERAGE SHIPPING TRANSIT TIMES
NOT INCLUDING HOLIDAYS

USPS GROUND ADVANTAGE: 2 to 5 Business Days
USPS PRIORITY: 2 to 3 Business Days
UPS GROUND: 2 to 5 Business Days

1. Home
2. AR-15 PISTON UPPERS
3. SBR / PISTOL UPPERS
4. THE ENFORCER 5.56 8.5" L.P.R. Piston Upper with A.P. 7" Quad Handguard

THE ENFORCER 5.56 8.5' L.P.R. Piston Upper with A.P. 7' Quad Handguard

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THE ENFORCER 5.56 8.5" L.P.R. Piston Upper with A.P. 7" Quad Handguard

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Your Price: $1,024.99

Questions about this item? Be the first to ask here.

Part Number: 220721-1

Availability: Out of Stock

Choose Options

SIGHT OPTIONS

SIGHT OPTIONS No Sights Magpul MBUS Pro Flip Up Front and Rear Sights (+$195.95)

C PRODUCT MAGAZINE *

10rd Magazine

CHARGING HANDLE OPTIONS

CHARGING HANDLE OPTIONS 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 (-$5.00) Add RM-556 Muzzle Device (+$50.00)

SPARE BOLT CARRIER BUFFER OPTONS

SPARE BOLT CARRIER BUFFER OPTONS Add Spare Bolt Carrier Buffer (+$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 Armor Black 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 (+$25.00) Crimson Red (+$25.00) Gold (+$25.00) Bright White (+$25.00) Armor Black (+$25.00) Graphite Black (+$25.00)

IF YOU CHOOSE 2 COLORS WRITE-IN COLOR PARTS CHOICE

If you selected 2 colors please write-in what parts are being Cerakoted in colors you selected. Example: write in Handguard in FDE, Upper Receiver in Coyote Tan, etc:

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• Description
• Product Features
• Product Specifications
• Ship Requirements

Black Rifle Arms^® THE ENFORCER 8.5" AR-15 5.56 Piston Upper with Aero Precision 7" Enhanced M-Lok Handguard

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• 7075-T6 Aluminum Forging : ✓
• Piston Upper Fits Any Mil-Spec 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 : NO
• Complete Upper Weight : 3 lbs. 6.4 oz.

Black Rifle Arms^® THE ENFORCER 8.5" AR-15 5.56 Piston Upper with Aero Precision 7" Enhanced M-Lok Handguard

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LOW PROFILE REGULATED PISTON SYSTEM FEATURES:

• 4 Position Regulated Gas System
• Low Profile Gas Block Design
• Ambi-Regulator Kno>
• 360° Continuous Rotation
• Easily Adjustable with One Hand
• Easily Adjustable with Gloves On
• Easily Adjustable from Firing Position
• Audible and Palpable Setting Confirmation
• No Detent Pin to Push In to Adjust Gas Regulator
• Regulator Knob Allows for Zero Visibility Adjustment
• Interlocking Mechanism Prevents Accidental Rotation of Knob
• Knob Configured for Rapid Adjustment with No Loss of Target Engagement

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: 5.56x45mm NATO
• Length: 8.5"
• Material: 4150 CrMoV 11595E Steel
• Profile: Medium Tactical
• 1/7 Twist
• 1/2-28 Threaded Muzzle
• Gas Block Journal: .750"
• Nitride: Inside and Out
• Barrel Extension: NiB
• Feed Ramp: M4
• 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: YES

REQUIRES SIGNATURE UPON DELIVERY: YES

ALL NFA RULES APPLY: YES

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