Brownells New Product Guru Paul Levy liquidates 2018 by informing us concerning a great deal of updated AR-15 buffer system components from Primary Weapons Systems. A buffer tube’s a buffer tube? NOT if it’s one of these beautifully machined brand-new tubes (practically called the “receiver expansion”) from PWS with several improvements for even more reliable, smoother operation of your AR-15 carbine, pistol or rifle. We really like the innovative ratcheting endplate that holds the castle nut in position – look Ma, no staking needed! Paul tells us about PWS’s improved recoil barriers for specialized applications. Next week: a New Year – and more new items.