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The classical model of drug cutting refers to the way that illicit drugs were diluted at each stage of the chain of distribution. [1]Drug markets have changed considerably since the 1980s; greater competition, and a shift from highly structured (and thus controlled) to greatly fragmented markets, has generated competition among dealers in terms of purity.
Phencyclidine or phenylcyclohexyl piperidine (PCP), also known in its use as a street drug as angel dust among other names, is a dissociative anesthetic mainly used recreationally for its significant mind-altering effects. [1] [4] PCP may cause hallucinations, distorted perceptions of sounds, and violent behavior.
Dovetail mount can also refer to a dovetail track running perpendicular to the bore, [9] often used for smaller front sights posts and rear sights blades found on handguns and some rifles. This mounting method is meant as a semi-permanent friction fit mounting solution where a slot is milled , for instance in the slide of a pistol, [ 10 ] and a ...
Illustration of forces in muzzle rise. Projectile and propellant gases act on barrel along barrel centerline A. Forces are resisted by shooter contact with gun at grips and stock B. Height difference between barrel centerline and average point of contact is height C. Forces A and B operating over moment arm / height C create torque or moment D, which rotates the firearm's muzzle up as ...
Both hops and cannabis contain terpenes and terpenoids; tetrahydrocannabinol (THC) is a terpenoid. [ 3 ] [ 4 ] Hops lack the enzyme that could convert cannabigerolic acid into THC or CBD, [ 5 ] but it could be inserted using genetic engineering as was done in 2019 for yeast.
On firearms with a picatinny rail, the distance from the bore to the optical axis can be divided into distance from bore axis to top of rail, and distance from top of rail to center of the optical axis. For example on an AR-type rifle, the mil-spec distance from center of bore to top of rail is 1.211 inches, or approximately 31 mm (1.2 in).
The first ACOG model, known as the TA01, was released in 1987. [3] [4] An example was tested on the Stoner 93 in the early 1990s by the Royal Thai Armed Forces. [5]In 1995, United States Special Operations Command selected the 4×32 TA01 as the official scope for the M4 carbine and purchased 12,000 units from Trijicon. [6]
The sighting arrangement resembles that used on the AKS-74U and consists of a rear flip-up sight permanently attached to the receiver top cover with two open square notches with 50 m and 100 m elevation settings and a round post front sight taken from the AK series of rifles, common to many Russian small arms. The front sight is contained in a ...