$64.99
Out of stock
BCG Includes:
- Bolt precision machined from 9310 alloy; carburized/case hardened & shot peened
- Ultrasonically cleaned and manganese phosphated – 2 hours accelerated Salt Spray & 48-hour endurance Salt Spray completed on each lot
- Extractor, machined 4140 Tool steel alloy, hardened with manganese phosphate
- Extractor Pin, precision machined and ground AMS6440/52100 Bearing grade steel retaining pin
- Extractor Spring, 5 coil, ASTM Grade A 228 wire stock, stress relieved, Tensile Strength of 393,000 PSI Max, 80 Durometer Per AMS-R-6855 black insert
- Extractor Spring O-Ring, Viton (FKM) Fluoropolymer Elastomer
- Ejector, S7 shock resistant tool steel alloy, hardened, shot peened per ASTM B851/SAE AMS2430, manganese phosphate
- Ejector Spring, ASTM Grade A 228 wire stock, heat treated, stress relieved – Tensile Strength of 376,000 PSI Minimum
- Gas Rings, Steel Corrosion Resistant Per AMS 5906 – X3
- Carrier machined from 8620 alloy, full auto profile, heat treated, ultrasonically cleaned and Nitrided
- Gas Key machined from 4130 chromoly steel alloy, heat treated and Nitrided
- Socket Cap Head Screw, steel, grade 4037 per ASTM, heat treated & manganese phosphate 2x
- Gas Key is installed with Permatex aviation gasket sealer, torqued to 55-foot pounds, pneumatically steaked and break away tests performed to spec
- Cam Pin, precision machined 4340 chromoly steel alloy, heat treated and Nitrided
- Firing Pin, precision machined 8740 steel alloy, heat treated, precision ground & hard chrome plate
- Firing Pin Retaining Pin, carbon steel ASTM A510, heat treated & manganese phosphate
- All material, components and packaging made in the USA
| Weight | .93 lbs |
|---|
4 reviews for AR/M16 NITRIDE GROUP WITH PHOSPHATE BOLT
Bought this bcg initially to replace my current bcg in my .223 rifle because i was having some issues with mine, right off the bet package came in within few days which was great, far as the quality goes nitride finish on this bolt looks great and it holds up well, no extraction issues or jams, will buy again.
I was looking for a bolt carrier group for my current build I’m doing, when I came across e2. Made the purchase bolt that came in within a few days, looks great and feels great. I put it in my .300 blk and shot about 400 rounds with 0 issues. Highly recommend this bcg.
When it comes to bolt carrier groups nobody does the quality and price like e2 does. This is my 4th purchase for my builds and I’m not planning to stop there, price is phenomenal even during the pandemic price didn’t change a cent.
Great bolt carrier group and as always good customer support, received my bcg after a couple days of order and it works like a charm.
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