Stealth XLT Straightness +/- .006” Weight tolerance +/- 4 grains per dz. Stealth XLT has the worlds first factory installed built-in STABILIZER. Stabilizes the arrow in flight quicker, for increased accuracy & noise reduction. SIZES: 6000 - 9.1gpi. 50# to 60#, 6500 - 9.6gpi. 60# to 70#.