Overview Reviews Product Description Details: Aluminum Freak Insert for Smart Parts Freak Barrel Kits Grey in color .691 bore Excellent condition, ready for use Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Freak Barrel Insert - .691 Grey - Aluminum Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments