Both of these essential components, as well as the extractor, gas key and cam pin, are all plated with chrome to provide protection against corrosion, as well as offer a slick, low-friction surface for smoother operation and easier cleaning. Each of these Brownells AR-15 Chrome Bolt Carrier Groups features a bolt machined from 9130 tool steel sitting inside of a carrier machined from durable 8620 hardened steel.
The non-serrated model is correct for use on early AR-15s, like the Air Force Model 601, while the serrated model is correct for the early XM16E1 rifles of the mid-1960s.īROWNELLS AR-15 SEMI AUTO CHROME BOLT CARRIER GROUP NO SERRATIONS 050806113923 Whether or not you're looking to outfit your top-of-the-line tactical rifle with an easily cleaned, low-friction bolt-carrier group or you're aiming for a period-correct Model 601 or even an XM16E1, then the Brownells AR-15 Chrome Bolt Carrier Groups are a great option to finish off your build.
For those looking to finish up a retro build, the Brownells AR-15 Chrome Bolt Carrier Groups can be had with or without forward-assist serrations. However, they are not compatible with full-auto lower receivers. These bolt-carrier groups are built to work in any rifle chambered in 5.56 NATO. Whether or not you're looking to outfit your top-of-the-line tactical rifle with an easily cleaned, low-friction bolt-carrier group or you're aiming for a period-correct Model 601 or even an XM16E1, then the Brownells AR-15 Chrome Bolt Carrier Groups are a great option to finish off your build. A Chrome-Plated Bolt-Carrier Group Built for Your Modern AR-15s and Retro Clones
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