Whether it puts competitors out of their misery or puts and end to the confusion resulting from the myriad of other bolt actions with little or nothing to distinguish one from the other, American Rifle Company’s Coup De Grâce is certainly worthy of its name.

From the Oxford English Dictionary:
e. coup de grâce n. /ku d? ?ras/ [literally stroke of grace] a blow by which one condemned or mortally wounded is ‘put out of his misery’ or dispatched quickly; hence figurative a finishing stroke, one that settles or puts an end to something.

The Coup De Grâce does more with less and looks great doing it with its beautiful and simplified design. The bolt assembly is composed of only sixteen parts, but can function with as few as twelve, of which two are springs and one is a pin. The entire bolt, even the striker assembly, can be disassembled in the field without the use of tools.

The Coup De Grâce is explosively tested for safety at pressures that greatly exceed standard proof loads.

Short action weight: 947 grams (2.1 pounds)
Long action weight: 1084 grams (2.4 pounds)
  Receiver
Remington 700 footprint
Integral recoil lug
Integral 20 or 30 MOA Picatinny rail
1.0625-20 UN 2B barrel thread
Screw-adjustable trigger hanger
AIAW optimized - no mag latch modifications necessary (short action)
AICS compatible with optional forward hard stop piece (short action)
AICS 3.850"/CIP magazine compatibility (long action)
Robust, 9 o'clock bolt release
Receiver-mounted passive (aka mechanical) ejector
DLC Finish
  Bolt
Tool-less bolt assembly 
3 lug interchangeable floating bolt heads 0.378" to 0.588"
70° bolt rotation
Controlled-round-feed extractor with ability to push/single feed
Pivoting handle primary extraction
Fixed handle option for conventional cam extraction
Dual cocking cams
Toroidal bolt-lug bearing surfaces
Standard 5/16-24 UNF 2A bolt knob thread
Black nitride finish
Please be advised that cartridges with 14.93mm (.588 in) diameter case heads, i.e. 338 Lapua Mag, will not be engaged by the extractor as they are released by the magazine feed lips. Instead, they will feed in a manner like that exhibited by push feed actions, especially if used with the fixed bolt handle.

We strongly recommend choosing the pivoting handle for use with the 588 bolt head for two reasons. First, large cartridges are more likely to get stuck in the chamber than small cartridges. And secondly, the cartridges will be extractable without the need to rotate the bolt closed.