M32 motorway along the viaduct, while surveying work was carried out in 2016 during the Metrobus junction refurbishments. The M32 has been criticised for severing longstanding links in Bristol. Older residents have claimed that formerly close-knit communities such as Easton have been shut off by the imposing concrete barriers next to the motorway. It has been criticised for running alongside the grounds of Stoke Park, spoiling the local atmosphere and requiring part of the estate including the Duchess Pond to be demolished. In 2008, Jeremy Isaacs claimed the motorway was a reason that Bristol did not win the European Capital of Culture
M4 carbine tube at a straight angle, resulting in part wearing. This can also tilt the bolt during extraction, leading to increased bolt lug failures. The third is that the use of a sound suppressor results in hot gases entering the chamber, regardless of a direct-gas impingement or gas piston design choice. The gas piston system may also cause the firearm to become proprietary to the manufacturer, making modifications and changes with parts from other manufacturers difficult. The M4 was developed and produced for the United States government by Colt Firearms, which had an exclusive contract to produce the M4 family of