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  • K&M ARMS M17S300

K&M ARMS M17S300


Market types:


Rifle type:



.300 Blackout

About Product

Caliber: 300 BLK

3.5lb to 5.0lb adjustable trigger pull with patented trigger linkage. (Something the bullpup industry is not known for )

Barrel Length: 17.5"

Barrel Twist: 1:7 Nitride treated

Rail height to center bore 2 1/8"

Overall Length: 26.25"

Weight: 7.6 LB

Short Stroke Piston System W/ adjustable gas system

Will shoot suppressed with 220gr subs and non suppressed with 110gr supers

Strong 3 Lug style bolt that is NP3 plated

Mil Spec type III Class 2 color black anodize, Cerakote options available for added cost.

Price $1800 (Cash price discount , CC will have a 3% surcharge Shipping $30 and AZ residence add TAX)


Billet aluminum Lower 6000 series

Adjustable AR drop in hammer assy with pull range from 3.5-5lb without removing the assembly. There is also a heavier spring that can be installed in the disconnector area that will allow it to go up to 5.5lb.

Utilizes standard AR-15 magazine catch, grip, springs and pins.

Skeleton billet trigger

Magpul enhanced butt pad

Push button safety located right at your finger tip

2X QD sling adapters at the butt of the rifle

2X AR style takedown pins. (Uses standard AR takedown springs and detent)

AR180 style bolt carrier with a 3 lug triangular bolt that uses standard AR extractor and ejector parts. Guide rods and bolt are NP3 plated.

Uses Standard AR mags. (Comes with one magpul 30 rd mag)

Uses standard AR pistol grip that can be changed to use most all other AR grip.

Non reciprocating charging handle changeable to both sides of the receiver .

Standard AR Flash hider threaded 5/8-24

Ambi mag release that is a standard AR style

Modular side rails that can be mounted in any of the side slots

AR style bolt catch with last round hold open

Tactical flared magwell for quick magazine loading

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