PK Firearms Logo

Your home for AR-15 parts & accessories!

PK Firearms Logo

Rock River Arms 18 Inch - MID - Stainless Steel - Rock River Arms TRO-STD Rail

$639.00
SKU: 
3168

The Rock River Arms 18 Inch - MID - Stainless Steel - Rock River Arms TRO-STD Rail upper features a Rock River Arms 18 inch 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 RRA TRO-STD rail, and an A2 flash hider. 


Rock River Arms 18 Inch - MID - Stainless Steel - Noveske NSR 16.7 Rail

$779.00
SKU: 
3179

The Rock River Arms 18 Inch - MID - Stainless Steel - Noveske NSR 16.7 Rail upper features a Rock River Arms 18 inch 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 Noveske NSR 16.7 rail, and an A2 flash hider.  Option available for Bead Blasted barrel finish.


Daniel Defense - 16 Inch - Midlength - LIGHTWEIGHT .625 - Daniel Defense 9.0 Omega X Rail

$769.00
SKU: 
3180

The Daniel Defense 16 Inch - Midlength - LIGHTWEIGHT .625 - Daniel Defense 9.0 Omega X Rail upper features a Daniel Defense 16 inch hammer forged, chrome-lined, lightweight profile barrel chambered in 5.56 NATO, with a 1:7 twist, mid-length gas system, .625 diameterfront sight journal, M4 ramped extension, front sight base with bayonet lug and a 1/2-28 threaded muzzle.  Manufactured from ordnance-grade 4150 chrome-moly vanadium alloy steel for exceptional strength, and HP-MP tested to ensure there are no internal flaws in the metal.  Built on a milspec flat top receiver with M4 ramps, Danie


Yankee Hill Machine 16 inch Fluted - YHM 5120 SLR Rail - YHM 9394 Front Flip Sight

$579.00
SKU: 
3225

The Yankee Hill Machine 16 inch Fluted - YHM 5120 SLR Rail - YHM 9394 Front Flip Sight upper features a Yankee Hill Machine 16 inch fluted barrel chambered in 5.56 NATO, with a 1:7 twist rate, carbine-length gas system and a 1/2-28 threaded muzzle.  Barrel has an M4 ramped extension, is manufactured from 4140 steel, heat treated to RC 25-32, and contains diamond fluting which improves rigidity and aids in barrel cooling.  Built on a milspec M4 ramped flat top receiver with a YHM-5120 SLR rail, YHM-9394 front flip sight and an A2 flash hider.


Daniel Defense - 16 Inch S2W - 6.8 SPC II - Basic Upper

$525.00
SKU: 
3230

The Daniel Defense 16 Inch S2W - 6.8 SPC II - Basic Upper features a Daniel Defense 16 Inch S2W profile, chrome-lined, CMV barrel, chambered in 6.8 SPC II with a 1:11 twist, midlength gas system, "F" marked front sight base with bayonet lug, and a 5/8-24 threaded muzzle.  Built on an M4 ramped, milspec, flattop receiver with midlength plastic handguards and an A2 flash hider.  Upgrades available for Daniel Defense Bolt Ca


Daniel Defense - 16 Inch S2W - 6.8 SPC II - Troy 9 Inch Bravo Rail

$649.00
SKU: 
3231

The Daniel Defense 16 Inch S2W - 6.8 SPC II - Troy 9 Inch Bravo Rail Upper features a Daniel Defense 16 Inch chrome-lined, S2W profile, CMV barrel, chambered in 6.8 SPC II with a 1:11 twist, midlength gas system, "F" marked front sight base with bayonet lug, and a 5/8-24 threaded muzzle.  Built on an M4 ramped, milspec, flattop receiver with a Troy 9 inch Bravo rail and an A2 flash hider.   Upgrades available for Daniel D


Rock River Arms 20 Inch - HBAR - Noveske NSR 16.7 Rail

$719.00
SKU: 
3233

The Rock River Arms 20 Inch - HBAR - Noveske NSR 16.7 Rail upper features a Rock River Arms 20 Inch HBAR barrel, chambered in .223 Wylde with a 1:9 twist, rifle length gas system, and a 1/2-28 threaded muzzle.  Built on a Rock River Arms forged A3 flattop receiver with a low profile gas block, Noveske NSR 16.7 Rail, and an A2 flash hider.

These are assembled and test fired by PK Firearms. 


Rock River Arms 20 Inch - HBAR - RRA TRO XL Rail

$579.00
SKU: 
3234

The Rock River Arms 20 Inch - HBAR - RRA TRO XL Rail upper features a Rock River Arms 20 Inch HBAR barrel, chambered in .223 Wylde with a 1:9 twist, rifle length gas system, and a 1/2-28 threaded muzzle.  Built on a Rock River Arms forged A3 flattop receiver with a low profile gas block, Rock River Arms TRO XL rail, and an A2 flash hider.

These are assembled and test fired by PK Firearms. 


Daniel Defense - 16 inch - Midlength - LIGHTWEIGHT - Noveske NSR-11 Rail

$719.00
SKU: 
3235

The Daniel Defense - 16 inch - Midlength - LIGHTWEIGHT - Noveske NSR-11 Rail upper features a Daniel Defense 16 inch, cold hammer forged, chrome-lined, lightweight profile barrel chambered in 5.56 NATO with a 1:7 twist, midlength gas system, and 1/2-28 threaded muzzle.  Built on an M4 ramped, milspec flattop receiver with a low profile gas block, Noveske NSR-11 rail, and an A2 flash hider.  Upgrades available for Daniel Defense Receiver and Daniel Def


Daniel Defense - 16 inch - Midlength - LIGHTWEIGHT - Daniel Defense 10.0 Lite Rail

$810.00
SKU: 
3236

The Daniel Defense - 16 inch - Midlength - LIGHTWEIGHT - Daniel Defense 10.0 Lite Rail upper features a Daniel Defense 16 inch, cold hammer forged, chrome-lined, lightweight profile barrel chambered in 5.56 NATO with a 1:7 twist, midlength gas system, and 1/2-28 threaded muzzle.  Built on an M4 ramped, milspec flattop receiver with a low profile gas block, Daniel Defense 10.0 Lite rail, and an A2 flash hider.


Pages