KVP barrel extensions are a simple, yet useful part. With the vast array of parts available on the market, achieving the perfect barrel/comp/hand guard fit can be tough. Barrel extensions come in handy when you need just a little more barrel/comp length to work well with your hand guard of choice. Available in three lengths, the KVP barrel extensions add .75″, 1″, or 1.25″ inches of operating length to your barrel.