Tippmann HD Carbine Stock - Heavy Duty OP43 $40.00 98 - $40.00 A5 - $40.00 X7 - $40.00 Quantity This variant is currently sold out We may not keep this item in stock. Please fill in the form below and we will let you know availability! HD Carbine stock for your Tippmann 98, A5 and X7 markersHD Means that the shaft is HEAVY DUTY metal for added strength.