Hardened, Chrome Lined Gas Key w/Staked Grade 8 Fasteners per Milspec
BCM® LOWER RECEIVER
Receiver Machined from Aluminum Forgings 7075-T6, Hardcoat Anodized (per MIL-A-8625F, Type III, Class 2)Low Shelf for RDIAS Installation – Installation of a registered drop-in auto sear allows weapon to fire on full automatic
Fire Controls Marked SAFE and SEMI
BCM® Milspec 7075-T6 Receiver Extension
Staked M4 Lock Nut
USGI H Buffer (1 USGI Tungsten, 2 Steel)
BCM® BARREL
Independently Certified Milspec 11595E Barrel Steel, Manganese Phosphate Barrel Finish on Entire Barrel16″ Standard Government Profile Barrel 1/7 Twist, M4 Feed Ramp Extension
USGI 5.56mm NATO Chrome Lined Bore and Chamber
HPT/MPI(High Pressure Test) (Magnetic Particle Inspected), per Milspec
Mil-Spec F-Marked Forged Front Sight
Standard Milspec A2 Flash hider
A chrome lined bore and chamber is now a worldwide standard in the industry for a battle rifle. The chrome bore and chamber is harder than the barrel steel and on the USGI M16/M4 rifles will aid in chambering, extraction, and reliability. It increases velocity, and also resists against fouling and corrosion from extended use in the field. This gives the end user a longer barrel life with less required time in maintenance and cleaning.
BCM® M4 carbines come stock with a carbine length gas system, as designed and fielded by the US Military in the XM177 carbine. Backed into the rifle length AR gas systems, the carbine length system was designed to be as compact as possible while reliably cycling rounds and maintaining compatibility the standard M16 bayonets. The carbine-length gas system is still in use, powering stock M4 carbines issued to members of the US Military today.
BCM M4 Carbines
Every BCM® barrel uses the same Independently Certified Mil-Spec 11595E Barrel Steel (CMV) used in the USGI M16 family of rifles. Built to perform in extreme environments, BCM® barrels are stronger and more durable than typical commercial barrels, thanks to high concentrations of carbon and/or vanadium in the alloy.
BCM® barrels also undergo a M197 HPT (High-Pressure Test), commonly referred to as a proof load, rating each barrel for 70,000 psi. This hardening is followed by a MPI (Magnetic Particle Inspection) to detect any possible flaws in the barrels surface, with both circular and longitudinal magnetic fields per ASTME1444-01 in the current Military-Specification.
Smi24.net — ежеминутные новости с ежедневным архивом. Только у нас — все главные новости дня без политической цензуры. Абсолютно все точки зрения, трезвая аналитика, цивилизованные споры и обсуждения без взаимных обвинений и оскорблений. Помните, что не у всех точка зрения совпадает с Вашей. Уважайте мнение других, даже если Вы отстаиваете свой взгляд и свою позицию. Мы не навязываем Вам своё видение, мы даём Вам срез событий дня без цензуры и без купюр. Новости, какие они есть —онлайн с поминутным архивом по всем городам и регионам России, Украины, Белоруссии и Абхазии. Smi24.net — живые новости в живом эфире! Быстрый поиск от Smi24.net — это не только возможность первым узнать, но и преимущество сообщить срочные новости мгновенно на любом языке мира и быть услышанным тут же. В любую минуту Вы можете добавить свою новость - здесь.
