Product Spotlight: SOLGW / Geissele 13.7" AR-15 Upper
This product spotlight from Brownells features a collaborative AR-15 upper from Sons of Liberty Gun Works (SOLGW) and Geissele. The build centers around a 13.7" SOLGW barrel, chosen for optimal mid-gas system dwell time, paired with a Geissele Mark 8 rail and receiver. Key components include a SOLGW BCG and Radian Raptor charging handle, with the SOLGW KNOX muzzle device serving as a flash hider, climb mitigator, and Dead Air suppressor host, bringing the barrel assembly to legal length. The presentation highlights the robust construction and data-driven design philosophy of both brands.












