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HK MR556A1 MR556 A1 Semi-Auto 223 Rem/5.56 NATO 16.5" MB 30+1 Adjustable Black
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HK CR556A1 MR556 A1 Competition Semi-Auto .223/5.56 NATO 16.5" MB 30+1 OR Magpul CTR Black
Heckler and Koch 81000276 MR556A1 Rifle 16.5" Barrel 30rd Keymod FDE
Heckler and Koch 81000533 MR556A1 Rifle 16.5" Barrel M-LOK 1-30rd Black
Heckler and Koch 81000580 MR556A1 Rifle 16.5" Barrel M-LOK 1-10rd Black
Heckler and Koch MR27 IAR Semi-Automatic 5.56x45mm Limited Edition AR-15 Rifle Limited Edition, 16.5" Barrel, 30+1
Heckler and Koch 81001001 MR556A1 75TH Anniversary Rifle M-LOK 4-30rd Flecktarn