Aero Precision presents the AERO PRCSN .875 LOW PFLE GAS BLK NI, a meticulously engineered gas block designed for precision and reliability. Constructed from 4140 hardened steel with a nitride coating, this low-profile gas block fits barrels with a .875 outer diameter, ensuring easy fitment and optimal performance. Ideal for range time and training, this gas block is a testament to Aero Precision's commitment to quality and innovation. Key Features: - Manufacturer: Aero Precision - Model: AERO PRCSN .875 LOW PFLE GAS BLK NI - Product Type: Gas Block - Material: 4140 Hardened Steel - Finish: Nitride - Unique Features: Low profile, no Aero logo, set screws are steel 10-32 x 3/16 knurled cup point - What's In The Box: Assembled gas block, adjustment wrench, replacement spring and detent.