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The AR-57 PDW upper is a new design on AR-15/M16 rifles, blending the AR-15/M16 lower with a lightweight, monolithic upper receiver system chambered in 5.7×28mm. This model is also sold as a complete rifle, supplied with two 50-round P90 magazines. [1]
In the fourth and final prototype, the upper and lower receiver were hinged with the now-familiar hinge and takedown pins, and the charging handle did not reciprocate and was not attached to the bolt carrier. [11] For a 7.62mm NATO rifle, the AR-10 prototype was incredibly lightweight at only 6.85 lb empty. [11]
The AR Lower V5 is a 3D printed lower receiver for the AR-15 rifle. [1] It was created in March 2013 Defense Distributed printed using the Stratasys Dimension SST 3-D printer [1] [2] using the fused deposition modeling (FDM) method. [2] The receiver was able to handle enough stress to fire more than 600 rounds. [1]
Dillon Aero manufactures the Air Force GAU-2B/A (Army M134) 7.62×51mm minigun, which is used primarily by 160th SOAR. The company completely redesigned the weapon and significantly improved its reliability while reducing its weight.
Barrett Firearms Manufacturing is an Australian-owned, American manufacturer of firearms and ammunition located in Christiana, Tennessee.It was founded in 1982 by Ronnie G. Barrett for the purpose of building semi-automatic rifles chambered for the .50 BMG (12.7×99mm NATO) ammunition, originally developed for and used in M2 Browning machine guns.
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The missile features wide off-boresight targeting sight with a dual-thrust solid rocket motor, giving it a speed of Mach 4. The missile can maneuver at over 38Gs with a guidance precision of less than 1 meter. [4] China has also developed a helmet-mounted sight (HMS) system for the PL-8, giving it "look and shoot" capability. [4]
The Allison VG-1410 was an air-cooled inverted Liberty L-12, with a geared super-charger, Allison epicyclic propeller reduction gear, and bore reduced to 4 + 5 ⁄ 8 in (120 mm), giving a lower displacement of 1,411 in 3 (23.12 L).