JP ENTERPRISES AR-10 / 9mm Custom Tuned & Polished Buffer Spring - Carbine Length

JP Custom Centerless Ground and Polished Operating Spring For Large-Frame Buffer Tubes - Carbine Length in Caliber .308 | 7.62 | 6.5 CM For Small-Frame Buffer Tubes - Carbine Length in Caliber 9mm Stainless Steel Polished Compatible accessories, see under this article, accessories Precision centerless ground and polished operating springs offer a smoother and quieter operation in AR buffer tubes. Improved impulse feel results in faster sight recovery and improved reliability. This is the buffer spring we recommend for use with 9mm carbines. MADE IN THE USA