BT-4 Combat:


  17044 - TANK ADAPTER   17045 - EXPANSION CHAMBER PLUG   19383 - LOWER GRIP NUT   19384 - POWER TUBE   19386 - BALL DETENT   19387 - CUP SEAL   19388 - LEFT UPPER RECEIVER   19389 - BOLT PLUG   19390 - BARREL   19391 - BARREL ADAPTER   19392 - VALVE BODY   19393 - INTERNAL VALVE SEAT   19394 - PLUNGER CUP   19395 - REAR VALVE SEAR   19396 - SINGLE TRIGGER ASSEMBLY   19397 - LEFT LOWER RECEIVER   19399 - TRIGGER GUARD   19400 - LOWER RECEIVER ACORN NUT   19401 - LOWER RECEIVER SCREW   19402 - TRIGGER PLATE   19402 - TRIGGER PLATE   19404 - TRIGGER PLATE SPACER   19404 - TRIGGER PLATE SPACER   19405 - SEAR   19406 - RIGHT UPPER RECEIVER   19407 - SAFETY WITH O-RINGS   19409 - FRONT BOLT   19410 - LINKAGE ARM   19413 - LONG RECEIVER BOLT   19414 - SHORT RECEIVER BOLT   19414 - SHORT RECEIVER BOLT   19414 - SHORT RECEIVER BOLT   19415 - RECEIVER NUT   19415 - RECEIVER NUT   19415 - RECEIVER NUT   19413 - LONG RECEIVER BOLT   19416 - VALVE SCREW   19417 - RIGHT LOWER RECEIVER   19418 - VELOCITY SCREW   19419 - GRIP UPPER HEX   19423 - TANK ADAPTER NUT   19424 - FRONT BOLT O-RING   19425 - INTERNAL VALVE O-RING   19426 - REAR BOLT AND EXTERNAL VALVE O-RING   19427 - SHOCK ABSORBER O-RING   19429 - 45 RUBBER GRIP   19430 - GRIP SCREW   19431 - RIGHT REAR SIGHT   19432 - LEFT REAR SIGHT   19433 - FRONT GRIP   19434 - FRONT GRIP BOLT   19435 - GAS LINE   19436 - TRIGGER PLATE DOWEL PIN   19430 - GRIP SCREW   19425 - INTERNAL VALVE O-RING   19437 - ENDCAP   19439 - LONG TANK ADAPTER BOLT   19440 - SHORT TANK ADAPTER BOLT   19441 - FRONT GRIP O-RING   19442 - VALVE SNAP RING   19443 - TRIGGER GUARD SCREW   19444 - INTERNAL VALVE SPRING   19445 - BOLT HANDLE RUBBER COVER   19446 - TRIGGER RETURN SPRING   19447 - DRIVE SPRING   19448 - DRIVE SPRING GUIDE   19449 - SEAR SPRING   19452 - BARREL ADAPTER O-RING   19453 - NAME PLATE   19454 - BOLT HANDLE   19455 - REAR BOLT   99126 - VALVE STEM   19385 - STANDARD FEED NECK ASSEMBLY  19421 - STANDARD FEED ELBOW NUT   19422 - STANDARD FEED ELBOW WASHER  19420 - STANDARD FEED ELBOW PINCH BOLT   17700 - REAR SIGHT ASSEMBLY   19382 - COMPLETE VALVE ASSEMBLY  FRONT GRIP ASSEMBLY