Remington Model 878

Remington Model 58
Type	Shotgun
Place of origin	United States
Production history
Designer	L. Ray Critendon, Ellis Hailston, and Harold L. Hameister^[1]
Designed	1959
Manufacturer	Remington Arms
Produced	1959–1963
Number built	~63,500
Specifications
Cartridge	12 gauge
Action	semi-automatic Gas Operated
Feed system	2+1 round Tubular magazine
Sights	Bead front, plain or Vent Rib barrel

The Remington Model 878, also known as the Automaster, is a semi-automatic shotgun manufactured by Remington Arms in the mid 20th century. It is a gas operated shotgun and was marketed alongside the related Model 58 and the recoil operated Model 11-48. The 58 was manufactured in 12 gauge only from 1959 to 1963 until it was replaced by the Model 1100.

Design

The Model 58 suffered from many design shortcomings compared to the contemporary Model 11-48 with which it shared many design features and parts. The 878 introduced an improved "self-adjusting" gas system^[2] compared to the Model 58 though it still operated similarly. Another change was in the carrier and bolt system which were now quite similar to the Model 870, thus the similar name.

While improved, Remington chose to retire the Model 58 and 878 quickly in favor of a new, more elegant design. The resulting Model 1100 immediately replaced the Model 58 and 878 and proved so successful that it soon also replaced the Model 11-48 and remains in production as of 2014, over 50 years after its introduction.

References

Remington Firearms and Cartridges

Rifles

Bolt-action	JuniorTarget 521TL Remington-Keene rifle M1903 Springfield rifle Model 5 Model 6 Model 7 Model 30 Model 34 M40 Model 241 Model 341 Model 504 Model 511 Model 512 Model 513 Model 521 Model 580 Model 581 Model 582 Model 600 Model 660 Model 673 Model 700 Model 710 Model 720 Model 721 Model 722 Model 725 Model 770 Model 788 Model 798 Model 799 M24 Sniper Weapon System M2010 Enhanced Sniper Rifle Modular Sniper Rifle R5 Remington Gas System

Pump-action	Model Six Model 14 Model 121 Model 141 Model 572 Model 572 Fieldmaster Model 760 Model 7600 Model 7615

Semi-automatic	Nylon 66 Model Four Model 8 Model 24 Model 522 Model 552 Model 597 Model 740 Model 742 Model 7400 Model 750 Model R-15 Model R-25 RSASS

Automatic	Adaptive Combat Rifle

Single shot	Rolling Block

Shotguns

Pump-action	Model 10 and 29 Model 17 Model 31 Model 870 Model 887

Semi-automatic	Model 11 Model 11-48 Model 58 Model 878 Model 1100 Model 11-87 Model SP-10 SPR 453

Break-action	SPR 100 SPR 310

Handguns

Semi-automatic	1911 R1 Model 51 R51

Revolver	Model 1858 Model 1875 Model 1890

Derringer	Model 95 Rider Single Shot Pistol Zig-Zag Derringer

Other	XP-100

Cartridges

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