BCG

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BCGBoston Consulting Group
BCGBritish Comedy Guide (website; UK)
BCGBilly Casper Golf (various locations)
BCGBinary Coded Graphs
BCGBirchip Cropping Group
BCGBest Companies Group (Harrisburg, PA)
BCGBoard for Certification of Genealogists
BCGBritish Consulate-General (UK)
BCGBacillus of Calmette and Guerin (tuberculosis vaccine; trademark of Institut Pasteur, Paris, France)
BCGBallistocardiogram
BCGBolt Carrier Group (firearms)
BCGBromcresol Green
BCGBritish Columbia Golf (British Columbia, Canada)
BCGBirth Control Glasses (military eyeglasses)
BCGBrightest Cluster Galaxy
BCGBusiness Conduct Guidelines
BCGBritish Chelonia Group
BCGBoston Culinary Group (est. 1961; Boston, MA)
BCGBilié de Calmette et Guérin (French: Bacillus Calmette-Guerin; tuberculosis vaccine)
BCGBi-Conjugate Gradient
BCGBaroque Choral Guild
BCGBay Consulting Group (Toronto, ON, Canada)
BCGBelgisch Centrum voor Geleidehonden vzw
BCGBritish Conference Grants
BCGBath Consultancy Group (UK)
BCGBig Coupe Group (online car club)
BCGBiota Concentration Guide (ecological safety)
BCGBureau de Contrôle Girondin (French: Control Office Girondin; est. 1998)
BCGBulk Call Generator
BCGBicolor Guaiac Test
BCGBingham Calnan Group
BCGBioinformatics & Computational Genomics
BCGBusiness Center Group
BCGBuilding Controls Group (UK standardization authority)
BCGBakalian Consulting Group
BCGBroadband Convergence Gateway
BCGBlackclaw Games
BCGBenefits Connection Group
BCGBig Cheesy Grin
BCGBiological Crystal Growth
BCGBusiness City Guide (UK)
BCGBadminton Club de Gien (Gien, France)
BCGBuller Caving Group (caving club in New Zealand)
BCGBiblical Church of God
BCGBuffalo Creek & Gauley Railroad
BCGBrumlik Consulting Group (San Clemente, CA)
BCGBrand Clear Glue
BCGBoot Camp Glasses
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References in periodicals archive ?
On receiving the Revolution DI for testing, I separated the upper and lower receivers and removed the bolt carrier group for inspection.
ONE AND DONE: THE POF REVOLUTION DI IS ONE RIFLE THAT HANDLES ALL TASKS
Each kit features the triangular handguard, teardrop forward assist and Colt "C" markings on the bolt carrier group. Colt markings also on trigger, hammer, bolt catch and A-frame forward sight.
ORIGINAL COLT M16A1 PARTS KITS FROM I.O., INC.!
How about a 14.5" Daniel Defense hammer-forged barrel (1:7) and Colt's M4 upper receiver and M4 mil-spec bolt carrier group. Then there's a Geissele Airborne charging handle, Geissele Super Modular Rail, MK16, 13-5" SureFire SF4P flash hider, Geissele gas block (pinned) and a mid-length gas port location.
GEISSELE AUTOMATICS URG-I: LOOK NO FURTHER FOR THE REAL DEAL!
Riding inside is a high nickel-phosphate-coated bolt carrier group that includes POF-USA's patented roller cam pin.
THE REVOLUTION'S HERE: IN A NIFTY PIECE OF ENGINEERING, POF-USA PUTS .308 POWER IN THE AR-15 PLATFORM
The system uses a bolt that is forced to rotate and unlock, slowing the bolt carrier group enough to safely cycle.
ONGUARD: The 9mm GUARD AR-15 from CMMG has been revamped to accept Glock pistol magazines
I'm using one in conjunction with a Sharps Rifle Company (SRCarms.com, 877/256-4794) Balanced Bolt Carrier Group. It has a slightly larger rear diameter compared to mil-spec, gives consistent travel and wear when reciprocating and corrects tilt well.
AR-15 Bolt Carrier Tilt
It has a 7.5" barrel with a 1:7 twist made of 416R stainless steel; the Ml 6 bolt carrier group is of Carpenter 158 steel, both are finished in Melonite.
SAINT AR-15 PISTOL
The standard bolt carrier group of an AR-15 is 73/s inches long.
Fun with the 9mm AR: police are cashiering 9mm SMGs and carbines in favor of .223s, but Tarr says a pistol-caliber carbine makes a lot of sense for a fun afternoon at the range
The bolt carrier group is Nickel Boron, the barrel is nitride treated, the buffer tube is polished and the trigger is finely tuned.
MMC Armory SHOT Show giveaway
Colt[R] "C" markings can be found on upper receiver, bolt carrier group, A-frame post and magazine.
ORIGINAL COLT[R] AR15A1 "BATTLEFIELD PICKUP" RIFLE. 5.56X45 NATO FROM ROYAL TIGER IMPORTS
The bolt carrier group is full-weight with a M16 cut.
COMP GUN: IS THE ISE ARMAMENT RA-315C RACE READY?
It includes everything you need to build up an AR pistol with a 10" barrel except the lower receiver and a bolt carrier group (which'll set you back another C-note).
FRANKENGUN: BUILD A DEFENSIVE MONSTER: AN EASY BUDGET BUGOUT BLASTER
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