You'll clamp your upper and lower receiver together with confidence each time you insert these pins. The concave and contoured face of these pins are shaped so you can quickly and easily push them in, regardless of your hand size or while you're wearing gloves. On the left side is a small cavity where you can use the tip of a bullet or a ball-point pen to swiftly and easily push them out to remove your upper. Features: Concave and contoured face allows for comfortable finger alignment, even with gloves on, for swift insertion Small cavity on the left side of the pins allows for quick removal; especially with the tip of a punch or a ball-point pen Lasered RISE Armament logo on the takedown pin Durable finishing - Black nitride finish Precision machined from 316 Stainless Steel Made in Broken Arrow, Oklahoma Backed by RISE's Lifetime Warranty