CQB 11.5″ .223W One-Stamp Upper (GP-5™ Silencer)

Experience superior tactical performance, engineered precision, and exceptional reliability with the CQB 11.5″ .223W One-Stamp Upper (GP-5™ Silencer). Crafted to exact industry standards, this product delivers uncompromised durability and effectiveness in the field.

Features & Performance Overview

The CQB 11.5″ .223W One-Stamp Upper (GP-5™ Silencer) is designed for tactical operators, target shooters, and firearm enthusiasts seeking peak functionality. Every component undergoes rigorous testing to guarantee durability, smooth operation, and optimal safety.

Trusted External Resources

Learn more about firearms safety, technical specifications, and search benchmarks via trusted authority resources:
Google |
Bing |
DuckDuckGo.

Related Internal Links

Explore more premium firearm accessories and suppressor technology directly on Griffin Armament.

Detailed Product Description

Griffin suppressed uppers ship from the factory with the suppressor pinned and welded to the barrel to achieve a non NFA (non SBR) regulated overall barrel length of +16″ per ATF regulations.

This MK1 CQB 11.5″ .223W One-Stamp Upper comes from the factory with a GP5™ Suppressor pinned and welded to the barrel, requiring a tax stamp for the suppressor only – hence the “One-Stamp” designation in conjunction with permanent attachment to a barrel typical in use on SBR’s. This upper makes an ideal home defense firearm, and ensures end user hearing protection. GP™ suppressors offer sub OSHA 140DB impulse risk limit, sound performance at minimal weight with high durability. The latest generation of GP™ suppressors are tubeless in construction, yielding lighter weights than previous GP™ suppressor generations, while maintaining their full-auto durability rating with no minimum barrel length restrictions. This latest generation GP5™ Suppressor incorporates a flash-hiding end cap design borrowed from the popular EXPLORR® family of suppressors.

One-Stamp uppers feature Griffin’s Suppressor-Ready Rail system which overhangs the suppressor, creating a unique, integrally-suppressed look, with more handguard length for muzzle control. The complete uppers are ready for use right out of the box, and include Griffin’s Enhanced Mil-Spec BCG, SN-ACH™ 15 Charging Handle, M2™ flip-up Iron Sights, PRIMO Gas Block™, and 4-piece Rail-Shield™ furniture kit. This upper features Griffin’s 11.5″ HEDP™ Barrel made from nitrided 416R Stainless Steel which provides incredible accuracy with maximum lifespan. TRUE-BORE™ concentric suppressor-grade threads provide an optimized interface for pinning and welding the GP5™ Suppressor providing guaranteed concentric suppressor alignment.

Griffin’s One-Stamp uppers offer premium features and reliability to each user, with the ease and simplicity of having a one-stamp build without the need for multiple tax stamps.

Features:

• Carbine-Length Gas System
• GP5™ Suppressor Pin & Welded
• .223 Wylde Polished Chamber and M4 Feed Ramps for Optimal Accuracy
• User’s Choice of Rail-Shield™ Furniture Color (Black, FDE, ODG, or Grey)
• High-Accuracy/Durability 416R Stainless Steel HEDP™ Barrel
• Air Gauged & Hand-Lapped Bore
• Reaches Overall Barrel Length of +16″
• Suppressor-Optimized Gas Block, Ports, and Charging Handle
• Melonite QPQ-Finished Griffin Enhanced Mil-Spec BCG Comprised of: 8620 carrier, C-158 (Carpenter) Bolt, and 4340 Cam Pin & Extractor

Parts List:

• GP5™ Suppressor – Pin & Welded
• Griffin 11.5″ .223W HEDP™ Barrel with TRUE-BORE™ Suppressor Threads
• Griffin 13.5″ SR Rail System
• Griffin PRIMO™ Gas Block .750″ (Pinned)
• Carbine-Length Standard Profile Gas Tube
• Griffin Rail-Shield™ 4-Piece Hand Guards Kit
• Griffin Enhanced Mil-Spec BCG
• Griffin Suppressor-Normalized Ambidextrous Charging Handle (SN-ACH™)
• Griffin M2™ Low-Profile Flip-Up Iron Sights
• Griffin Assembled Upper Receiver