SOFR-15 Alpha AR15 8.2" 300BO Complete Pistol

SOFR-15 Alpha AR15 8.2" 300 Blackout Complete Pistol

Unparalleled Suppressor Compatibility: Our barrel is designed with subsonic ammunition and suppressor use in mind, featuring a conservative gas port size that provides a soft, flat shooting recoil impulse and less gas to the end user's face with their suppressor. Read more below:

Lower Receiver Assembly:

Our Completed SOFR-15 Lowers come assembled with the following Overt Industries Components:

• FR Lower Parts Kit
• FR Single Stage Nickel Teflon Flat Face Single Stage Trigger
• FR Carbine Buffer System - Standard Carbine Buffer & 17-7 Steel Buffer Spring 
• B5 Systems Type 23 Grip & Trigger Guard
• SB Tactical SBA3 Pistol Brace

The SOFR-15 Alpha Forged Lower Receiver is crafted From Rugged 7075-T6 Forged Aircraft-Grade Aluminum, Matte Black Hard-Coat Anodized Finish, Per Mil 8625 Type 3 Class 2 Standards, To Ensure Resistance To Wear And Corrosion In The Harshest Environments. 

Manufactured To Milspec Using State-Of-The-Art CNC Equipment, This Lower Receiver Guarantees Consistent Quality and Exact Tolerances, Meeting Our Demands For A Fighting Rifle Lower Receiver.

• Machined from 7075-T6 Forged Aircraft Grade Aluminum
• Matte Black Hard-Coat Anodized per Mil 8625 Type 3 Class 2
• Caliber Marking = MULTI
• Compatible with all standard AR-15 Components and Magazines
• Take Down Pin Spring and Detent Hole is Threaded for a 6-32 Set Screw (hardware not included)
• Upper Tension Screw behind Grip Screw to Adjust Tension between Upper and Lower (hardware not included)
• Manufactured to MILSPEC on State of the Art CNC Equipment for Consistent Quality and Exact Tolerances

Upper Receiver Assembly:

Overt Industries SOFR - 8.2" 300 Blackout Suppressor Optimized Fighting Rifle Upper – Suppressor Optimized

• Overt Industries 8.2" 300 BLACKOUT SOB (Suppressor Optimized Barrel)
• Overt Industries Upper Receiver
• Overt Industries Nitrided Steel Gas Block & Fighting Rifle Melonite Gas Tube
• Overt Industries 7.5"" Hard-Line MLOK® Rail System - Black Anodized

This Upper Receiver assembly was properly assembled using Aeroshell 64 on the barrel extension and barrel nut after the threads were properly seasoned. The barrel was also properly dimpled using a BRD Engineering Pro Jig and the gas block set screws were tightened using Rocksett for maximum reliability at high temperatures. The handguard was assembled using Loctite 242 on the rail mounting bolts.

Barrel Specifications

Introducing the Overt Industries 8.2" 300 Blackout AR-15 Suppressor Optimized Barrel (SOB)

Shooting a suppressed rifle offers many advantages to the end user, such as enhanced signature management, improved recoil impulse, and decibel reduction. However, suppressing a gas impingement AR15 does create some disadvantages due to the increased gas blowback that most suppressors create. The Overt Industries SOB Barrel line solves these issues and offers a reduced barrel gas port diameter that is optimized for the increase in gas blow back. This results in less gas in the face of the end user and improving felt recoil and eliminates the need for additional adjustable gas system components.

Optimized Gas Port Diameter = 0.093" 

Flow-Through Gas Port Diameter = 0.102" (Designed for Flow-Through Suppressors)

Our requirement for our 300 Blackout SOB was for optimal gassing and reliability for Subsonic Suppressed and Supersonic Suppressed/Unsuppressed configurations. The 0.093" gas port met our requirement with maintaining reliability and offering very soft recoil impulse when shooting subsonic ammunition suppressed, which we feel is the primary use case of a short barrel 300 Blackout AR15. Optimizing the gas system for this end use does result in losing the reliability of shooting subsonic ammunition without a suppressor. However, we feel there is zero practicality in shooting subsonic 300 Blackout without a suppressor. 

Compatibility Notes:

SUPPRESSORS:  We developed the standard Suppressor Optimized barrels with 0.093" gas port for a traditional baffle stack suppressor, therefore some of the flow through suppressors may not provide enough backpressure when shooting subsonic ammo suppressed. We now offer a Flow-Through Gas Port Diameter that we devolved exclusively for Flow-Through Suppressors. This variant features a larger gas port that was developed for perfect functionality with flow-through suppressors that produce significantly less back-pressure. 

AMMUNITION: Our barrels are designed to be compatible with all of the ammunition available on the commercial market, the only exception is Hornady Subsonic ammunition. Hornady is a great quality ammunition, however Hornady uses a powder in their Subsonic 300BO loads that produce a significantly lower cartridge pressure. This creates reliability issues in many gas operated carbine platforms and the reliability issues are not exclusive to our Barrels. 

300BO ammunition exhibits considerable variance in projectile geometry and powder charge. Certain lighter supersonic profiles (for example: 110-grain V-MAX and VOR-TX variants) may not cycle reliably in semi-automatic AR-15 platforms and can produce intermittent feeding issues. For predictable performance, validate your chosen ammunition in your specific rifle prior to large purchases. This compatibility warning applies broadly to 300BO AR-15 platforms and is not unique to our 300BO SOFR-15.

Overt Industries Reliability: Overt Industries is known for its commitment to quality and innovation. We 100% QC every SOB barrel and ensure that the gas port diameter is within 0.001" of our specification of 0.093". Our suppressor-optimized barrel is no exception, embodying our Hard Use - Zero Sacrifice Ethos. 

Our barrels include one gas block set screw dimple located directly under the gas port for enhanced durability and compatibility with industry standard gas blocks. 

BARREL SPECIFICATIONS: 

Note this barrel is optimized for suppressor use, shooting without a suppressor or with remanufactured or low quality ammunition may result in varying performance. NFA Rules Apply. 

Overt Industries AR-15 13" Hard-Line MLOK® Rail System 

The Hard-Line MLOK® Rail System was designed with an emphasis on Rigidity, Ruggedness, and Simplicity. 100% Made in the USA, the Hard-Line MLOK® Rail System utilizes a Three Point Mounting System to ensure that the handguard clamps securely to the barrel nut without the possibility of unwanted rotation.

Machined from American sourced 7075 T-6 extruded aluminum, the Hard-Line MLOK® Rail System offers increased strength, rigidity and reduces overall handguard flex by removing often unused MLOK® sections in order to enhance the structure of the rail system. The increase in handguard rigidity reduces handguard flex resulting in a stronger mounting structure for Laser Aiming Devices. We also integrated chamfered serrations to the exterior of the rail system in order to provide maximum grip friction to the end user. 

Features:

• Free float design
• Chamfered Serrations and Leading Edges 
• Ambidextrous Integrated QD Sockets 
• 7-Sided M-LOK®
• 2" M-LOK® Attachment
• American sourced 7075 T-6 extruded aluminum
• 4140 Steel Barrel Nut
• MIL-A-8625 Type III Class 2 Anodizing 

All FFL items must be purchased separately from Non-FFL items by placing another order. We have found it is in the best interest of all parties to ship only FFL items to your FFL, placing two orders will ensure the Non-FFL Items are shipped directly to your personal shipping address. Failure to follow these instructions will result in a further delay and possible order cancellation.

FIREARM WARNING:

This is a serialized item considered to be a firearm by BATFE. This item must be shipped to a Federal Firearm License (FFL) holder. All BATFE, GCA & NFA rules apply. 

The customer is responsible for instructing their FFL to send us a copy of their FFL and reference your order number to Sales@OvertIndustries.com

FFL orders Typically take 3-5 Business Days to process depending on how quickly your FFL provides all necessary license information to process the transfer.

The customer is also responsible for checking with their local FFL to ensure this weapon is legal in the state they reside in and that they will accept this weapon on their behalf and transfer it.

Overt Industries LLC will NOT be responsible for any shipping or admin charges incurred by packages not being accepted by the FFL you choose during checkout.