The Hornady Black Rifle Ammo 5.56 NATO 75 gr. Interlock HD SBR Black 20 rd. is a premium choice for firearm enthusiasts seeking top-tier performance in short barrel rifles. Engineered specifically for 10.5"-11.5" SBRs, this ammunition utilizes proprietary propellant technology and incorporates the renowned Critical Duty FlexLock technology, ensuring superior reliability and effectiveness. The 75 gr rifle ammo is meticulously crafted to deliver exceptional performance, whether your rifle is suppressed or unsuppressed, offering virtually no flash or residue. This low flash ammunition significantly reduces the sound signature, making it an ideal choice for those who prioritize stealth and precision. Additionally, it is designed to prevent fouling or overheating of suppressors, ensuring a longer lifespan and consistent performance. The uniform velocity and accuracy of this short barrel rifle ammunition make it suitable for automatic platforms, providing a controllable rate of fire that meets the rigorous standards of the FBI protocol. Whether you're using it for tactical applications or recreational shooting, the Hornady Black Rifle Ammo stands out as a reliable and efficient option. With its focus on delivering optimal performance in 5.56 NATO ammo, this product is a testament to Hornady's commitment to innovation and quality in the ammunition industry.