Geissele Super Duty MOD1 Rifle 16" 5.56 NATO CHF Barrel - Stressproof Bolt - SSA-E X Trigger The Geissele Super Duty MOD1 is the current evolution of the Super Duty platform, incorporating continuous design development to provide superior ergonomics and modularity while maintaining the legendary balance of performance and reliability. Features 16" cold hammer forged barrel and Forged Stressproof Bolt that are High-Pressure Tested (HPT) and Magnetic Particle Inspected (MPI), working in concert to achieve unmatched dependability with match-grade accuracy. The Forged Stressproof Bolt is made from Carpenter 158+, directly developed with Carpenter Steel metallurgists to create a material that is cleaner with fewer impurities, making it stronger and more fatigue resistant-capable of 5 times the life of a mil-spec bolt. Precisely balanced gas system includes the bomb-proofed Super Compact Gas Block, fine-tuned gas port sizing, and Super 42 braided buffer spring to minimize felt recoil while maintaining reliable cycling. Features HUXWRX Flash Hider-QD muzzle device offering seamless compatibility with the HUXWRX FLOW series, SSA-E X two-stage trigger with Lightning Bow and Nanoweapon-coated components, ambidextrous Super Configurable Safety, Airborne Charging Handle, checkered magazine release, Maritime Bolt Catch, MK16 rail with center-tab mated design and stainless steel QD inserts, B5 SOPMOD stock, A17 grip, and Geissele Quick Disconnect Sling Mount Endplate. Black finish. SKU: 08-395B. CHF Barrel with HPT and MPI The Geissele cold hammer forged 16" barrel is High-Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) to ensure reliability and match-grade accuracy. The CHF process creates an exceptionally strong, accurate barrel through intense hydraulic pressure, while HPT and MPI verify strength and detect any material defects. Forged Stressproof Bolt The Forged Stressproof Bolt is made from Carpenter 158+, a material directly developed with Carpenter Steel metallurgists to be cleaner with fewer impurities. This advanced steel makes the Stressproof Bolt stronger and more fatigue resistant, capable of 5 times the life of a mil-spec bolt. HPT and MPI testing ensure reliability. Precisely Balanced Gas System The precisely balanced gas system includes the bomb-proofed Super Compact Gas Block, fine-tuned gas port sizing, and Super 42 braided buffer spring. These purposefully selected components minimize felt recoil while maintaining reliable cycling, even in adverse conditions. HUXWRX Flash Hider-QD The HUXWRX Flash Hider-QD muzzle device offers seamless compatibility with the innovative HUXWRX FLOW series suppressors. The QD interface enables rapid suppressor attachment and removal while the flash hider reduces muzzle flash signature. SSA-E X Two-Stage Trigger The SSA-E X two-stage trigger provides unrivaled control and performance with a wide-body Lightning Bow shape and Nanoweapon-coated components. The enhanced trigger delivers crisp, consistent breaks for precision shooting. Ambidextrous Controls Purpose-driven controls include the ambidextrous Super Configurable Safety, Airborne Charging Handle, checkered magazine release, and Maritime Bolt Catch. These components provide superior interfacing with the platform for both left- and right-handed shooters. MK16 Rail with QD Inserts The well-vetted center-tab mated MK16 rail features stainless steel QD inserts for sling mounting. The free-float design ensures barrel harmonics remain unaffected while providing M-LOK mounting capability. B5 SOPMOD Stock and A17 Grip The B5 SOPMOD stock upholds exceptional ergonomics while the modernized A17 grip enhances handling. The Geissele Quick Disconnect Sling Mount Endplate improves modularity with integrated QD capability. The Geissele Super Duty MOD1 delivers unmatched dependability with match-grade accuracy-manufactured with confidence and without compromise. SPECIFICATIONS Manufacturer: Geissele Automatics Model: Super Duty MOD1 Rifle SKU: 08-395B Caliber: 5.56 NATO (.223 Remington compatible) Magazine Capacity: 30 rounds Barrel Length: 16 inches Barrel Type: Cold Hammer Forged (CHF) Barrel Testing: HPT (High-Pressure Tested), MPI (Magnetic Particle Inspected) Accuracy: Match-Grade Bolt: Forged Stressproof Bolt (Carpenter 158+) Bolt Testing: HPT, MPI Bolt Life: 5x mil-spec bolt life Gas Block: Super Compact Gas Block Gas System: Precisely Balanced, Fine-Tuned Gas Port Buffer Spring: Super 42 Braided Muzzle Device: HUXWRX Flash Hider-QD Suppressor Compatibility: HUXWRX FLOW Series Trigger: SSA-E X Two-Stage Trigger Features: Lightning Bow, Nanoweapon Coating Safety: Ambidextrous Super Configurable Safety Charging Handle: Airborne Charging Handle Magazine Release: Checkered Bolt Catch: Maritime Bolt Catch Handguard: MK16 Rail (center-tab mated) Rail Features: Stainless Steel QD Inserts Stock: B5 SOPMOD Grip: A17 Modernized Grip Sling Mount: Geissele QD Sling Mount Endplate Finish: Black Manufacturing: USA