The Killhouse Weapon Systems CTR Stock With Metal Gas Through Stock Insert combines the versatile Killhouse Gas-Through Stock Insert with the popular CTR stock to create a realistic look and comfortable shooting platform for your paintball gun. The CTR stock is fully adjustable with 6 points of adjustment. This all-aluminium stock insert works with any standard ASA (Air System Adapter) and allows you to run a remote coil from the rear of your paintball marker, instead of from a standard grip ASA. Position it perfectly with the integrated thread lock ring, which allows you to the stock insert correctly. Works with most standard remote systems.