Videos tagged with M4 Feed Ramps

This review details the MK1 11.5" 5.56mm upper receiver, highlighting its value and performance. The presenter, who has a financial stake in the product, emphasizes the careful selection of components like the Bear Creek Arsenal barrel and Toolcraft bolt carrier group. The build aims for 'Milspec-Plus' reliability and accuracy, backed by an unlimited lifetime warranty and a rebarreling policy.

This inspection reveals critical dimensional issues with a Bear Creek Arsenal 16-inch .223 Wylde barrel. The throat is cut shorter than specification, behaving more like a .223 Remington chamber, which can cause pressure issues with 5.56 NATO or Wylde loads. Pitting was observed near the muzzle, and the crown is poor, indicating potential manufacturing inconsistencies.

This video provides a comprehensive test and review of the Bear Creek Arsenal (BCA) ANDEAN BEAR STAINLESS 16" 5.56 NATO AR-15 Complete Upper Assembly. The review details the upper's specifications, including its 16" stainless steel barrel with a 1:7 twist rate, a 15" lightweight KeyMod rail, and its chambering in 5.56 NATO. It highlights the M4 feed ramps, stainless A2 flash hider, and the inclusion of a BCG and charging handle. The video also emphasizes BCA's commitment to quality control, including test firing, and their limited lifetime warranty, while also advising against the use of steel-cased ammunition.

This review of the Windham Weaponry SRC carbine in 7.62x39mm highlights its successful integration of the AR platform's ergonomics with the affordable and potent 7.62x39mm round. Key technical aspects include a 4150 Chrome Moly Vanadium barrel, forged 7075 T6 aluminum receivers, and crucially, expanded M4 feed ramps and a robust BCG to handle the tapered cartridge. The rifle demonstrated reliable function and good accuracy, making it a compelling option for those seeking an AR-style rifle in this caliber.