Geissele Automatics Geissele Super Duty 5.56 NATO 10.3″ 1:7″ CHF Bbl DDC Stripped Upper Receiver w/9.3″ M-LOK MK16 SMR 08-244S

Geissele Super Duty 5.56 NATO 10.3″ 1:7″ CHF Bbl DDC Stripped Upper Receiver w/9.3″ M-LOK MK16 SMR 08-244S is an ideal addition to any custom AR build, bringing the quality and craftsmanship Geissele products are known for. This Geissele Super Duty 10.3 build pairs a 10.3″ cold hammer forged, chrome-lined barrel with a 9.3″ MK16 Super Modular Rail, seamlessly attached via center-aligning tab to eliminate any chance of rail rotation. That’s a real point of failure on lesser rails – a loose handguard walks a mounted optic or light off zero over time, and this mounting system is built specifically to prevent that. Manganese phosphate coating adds another layer of durability on top of the chrome lining, extending service life across high round counts. As a Geissele Stripped upper, it comes without charging handle, BCG, or muzzle device, giving builders full control over which internals go into the rifle. Key Features: 10.3″ cold hammer forged, chrome-lined barrel, 1:7 twist Manganese phosphate coating 9.3″ Geissele MK16 Super Modular Rail, center-aligning tab mount Stripped configuration – no BCG, charging handle, or muzzle device Desert Dirt Color finish Fits any mil-spec AR-15 lower receiver Rail rotation-resistant mounting system All NFA regulations apply at this barrel length This Geissele 10.3 Upper hands builders the hardest part of an upper build – a properly manufactured barrel and rail – while leaving the rest of the parts selection entirely up to them. Geissele Automatics Geissele Super Duty 5.56 NATO 10.3″ 1:7″ CHF Bbl DDC Stripped Upper Receiver w/9.3″ M-LOK MK16 SMR 08-244S