- QR - 4in - Forward Extension - Metal, PlasticMcDermott EXTFMCD QR Forward Pool Cue Extension - 4" SKU: EXTFMCD QR$61.00PriceQuantityOnly 6 left in stockAdd to CartBuy NowSKUEXTFMCD QRNo Reviews YetShare your thoughts. Be the first to leave a review.Leave a Review