All items are unused. Prices are low, so expect to pick up the shipping if needed. SOLD 1. PSA AR-15 Pistol Buffer Tube Kit. $25 SOLD 2. KAK shockwave package. Black is beautiful. Includes: Stabilizer, tube, castle nut, buffer and spring, and mil-spec end plate. These are $95, without s/h. $65 SOLD 3. PSA 8.5" SS 300 Blackout upper, w/keymod freefloat guard. Muzzle Thread: 5/8-24. Twist Rate: 1:8. M$ barrel extension. Low pro gas block. Overall Length: 17.2". BCG/Handle not included. $250 Buy the upper and I'll knock $10 off either #1 or #2. Almost free!