Sionics NP3 BCG BLEM

Sionics NP3 BCG

The Sionics Weapons Systems M16 profile Bolt Carriers are machined to USGI specifications. Our M16/M4 carrier includes a Mil-Spec Gas Key. The Gas Key is heat treated per USGI specifications and NP3 Coated. The Gas Key is secured to the carrier via OCKS (Optimized Carrier Key Screw) and properly staked using a MOMOAKS. These properly hardened parts insure a strong staking and proper gas system function. Furthermore, each carrier has a gasket formed by aviation Permatex that is applied by hand to the mating surfaces between the gas key and the carrier.

SIONICS Bolts are manufactured from Carpenter 158® Steel. Each Bolt is HP/MPI Tested and Inspected. Each Bolt is Shot Peened and comes with a Sprinco Heavy Extractor Spring and Black Spring Insert. The Bolt and Cam Pin with the exception of the Extractor have been NP3 treated to enhance Corrosion Resistance and Carbon build-up.

Each Carrier Assembly is treated with a durable Nickel/PTFE plating which creates a permanently lubricious surface which reduces the need for lubrication.

Regarding Corrosion Resistance, NP3 has great corrosion resistance twice the amount of Nickel Boron. Nickel Boron is at the same level of corrosion resistance as regular Nickel or Chrome.

All SIONICS Bolt Carrier Groups are Test Fired before shipment and therefore may show minor signs of use.

DISCLAIMER:
Due to the inherent nature of NP3 Coating, Tooling Marks may be present on SIONICS NP3 Coated Bolt Carrier Groups.  Tooling marks are COSMETIC and have ZERO effect on function.  Being that the NP3 Coating impregnates into the host material, it is much thinner and much less forgiving in hiding Tooling Marks.  Other popular coatings such as Phosphate and Nitride are thicker and darker in appearance, allowing for Tooling Marks to be easily concealed.  Regardless of Tooling Marks present on SIONICS NP3 Bolt Carrier Groups, every SIONICS Bolt Carrier Group is backed by our Lifetime Warranty that covers any Manufacturer Defect that would effect function.