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Noveske 7.5 Inch Diplomat - Geissele MK14 - KX5 Piggy Brake

$819.00
SKU: 
4252

The Noveske 7.5 Inch Diplomat - Geissele MK14 - KX5 Piggy Brake upper features a  7.5" Stainless Steel, medium weight Diplomat 5.56mm barrel group consists of a 1 in 7 twist improved polygonal rifled barrel. 5.56 Noveske Match Mod 0 chamber with a pistol gas system. Extended M4 feed ramps with 1/2x28 TPI muzzle threads. Bead blasted finish, 1" long gas block seat, pinned low profile gas block.  Built on an M4 ramped, milspec flattop receiver with a Geissele MK14 rail, and a Noveske KX5 Piggy Brake.



Rock River Arms 7 Inch Pistol

$425.00
SKU: 
4271

The Rock River Arms 7 Inch Pistol upper features a Rock River Arms 7 inch heavy barrel chambered in 5.56 NATO with a 1:9 twist rate, pistol length gas system and 1/2-28 threaded muzzle.  Built on an M4 ramped, milspec flattop receiver with a Rock River Arms free-float pistol tube, and an A2 flash hider.

These are assembled and test fired by PK Firearms.

Complete with AR-15 bolt carrier group and forged charging handle. 



Rock River Arms 16 Inch - MID-LENGTH - Fluted Predator Upper

$559.00
SKU: 
4282

The Rock River Arms 16 Inch - MID-LENGTH – Fluted Predator Upper features a Rock River Arms 16 inch fluted, heavy match, air gauged, cryo treated stainless steel barrel chambered in .223 Wylde with a 1:8 twist, mid-length gas system and a target crowned muzzle.  Built on a Rock River Arms forged A4 flattop receiver with a mid-length aluminum free float tube, single rail gas block, and sling swivel stud.



Rock River Arms - 18" SS Fluted – Rock River Arms Midlength Free Float Tube

$579.00
SKU: 
4283

The Rock River Arms - 18" SS Fluted - Rock River Arms Midlength Free Float Tube upper features a Rock River Arms 18" Fluted Stainless Steel, Heavy match barrel, chambered in .223 Wylde with a 1:8 twist, midlength gas system, and a 1/2-28 threaded muzzle.  Built on an RRA flat top receiver with a Rock River Arms Midlength Free Float Tube, single rail gas block and an A2 flash hider. 



CMMG 8 Inch 300 AAC BLACKOUT - YHM 5310 KR7 - KX3 Piggy Brake

$549.00
SKU: 
4285

The CMMG 8 Inch 300 AAC BLACKOUT - YHM 5310 KR7 - KX3 Piggy Brake upper features a CMMG 8 inch, 4140 chrome-moly, medium tapered profile, salt bath nitride finished barrel chambered in 300 AAC Blackout with a 1:7 twist, pistol length gas system, and a 5/8-24 threaded muzzle.  Built on an M4 ramped, milspec flattop receiver with a lo-pro gas block, YHM-5310 KR7 rail, and a Noveske KX3 piggy brake.

These are assembled and test fired by PK Firearms.



Rock River Arms 16 Inch - MID - HBAR - Troy 13 Inch - CARBON FIBER - Alpha Revolution Rail

$508.00
SKU: 
4291

The Rock River Arms 16 Inch - MID - HBAR - Troy 13 Inch - CARBON FIBER - Alpha Revolution Rail upper features a Rock River Arms 16 inch HBAR contour barrel chambered in 5.56 NATO with 1:9 twist, midlength gas system and 1/2-28 threaded muzzle.  Built on an RRA forged flat top receiver with a Troy 13 Inch Carbon Fiber Alpha Revolution Rail,  low profile gas block and an A2 flash hider.  Includes three accessory rails for Troy 13 Inch rail.

These are assembled and test fired by PK Firearms.



Rock River Arms 16 Inch - MID - HBAR - Troy 11 Inch - CARBON FIBER - Alpha Revolution Rail

$499.00
SKU: 
4292

The Rock River Arms 16 Inch - MID - HBAR - Troy 11 Inch - CARBON FIBER - Alpha Revolution Rail upper features a Rock River Arms 16 inch HBAR contour barrel chambered in 5.56 NATO with 1:9 twist, midlength gas system and 1/2-28 threaded muzzle.  Built on an RRA forged flat top receiver with a Troy 11 Inch Carbon Fiber Alpha Revolution Rail,  low profile gas block and an A2 flash hider.  Includes three accessory rails for Troy 11 Inch rail.

These are assembled and test fired by PK Firearms.



Rock River Arms 18 Inch Stainless - Railed Gas Block - Free Float Mid Length Tube

$549.00
SKU: 
4305

The Rock River Arms 18 Inch Stainless - Railed Gas Block - Free Float Mid Length Tube upper features a Rock River Arms 18 Inch stainless steel, air gauged, cryo-treated barrel chambered in .223 Wylde with a 1:8 twist, mid-length gas system, and a target crown muzzle.  Built on a Rock River Arms forged A4 flattop receiver with a single rail gas block and mid length free float tube with sling swivel stud. This PKF Built upper fills the gap between the 16" and 20" Rock River Predator Pursuit factory uppers.



Rock River Arms 18 Inch Stainless - Free Float Rifle Tube

$549.00
SKU: 
4306

The Rock River Arms 18 Inch Stainless - Free Float Rifle Tube upper features a Rock River Arms 18 Inch stainless steel, air gauged, cryo-treated barrel chambered in .223 Wylde with a 1:8 twist, mid-length gas system, and a target crown muzzle.  Built on a Rock River Arms forged A4 flattop receiver with a low profile gas block and rifle length free float tube with sling swivel stud.


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