The Geissele 5.56mm Reliability Enhanced bolt carrier group 05-2993 is engineered for those who demand the utmost in performance and dependability from their firearms. This full mass, full-auto rated M16/M4 bolt carrier group is a testament to Geissele's commitment to quality and innovation, crafted in their cutting-edge manufacturing facility. At the heart of its design is a chrome-lined, nano-coated gas key that is meticulously torqued and staked to ensure optimal function and longevity. The extended upper rails are a standout feature, providing enhanced stability and significantly improving feeding reliability, even under the most demanding conditions. The application of Nano weapon technology coating elevates this carrier group to a new level, offering unparalleled resistance to corrosion and wear. Whether in the field or at the range, the Geissele 05-2993 is the ultimate choice for those who refuse to compromise on reliability and performance.

Automatic profile configuration
M16 profile
Carrier model 8620
C158 bolt
H13 steel cam pin
Enhanced upper rails
Chrome nitride nano weapon finish
High-performance technology (HPT) and multi-point interface (MPI)

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