peep block

cylinder block (engine block)

feed block slide (feed-block-actuating slide)

peep rear sight

peep sight

peep-sight

peep-sight door

tang peep sight

peep

peep rear sight with locking device

peep sight

peep-mounted

block diagram

block face

block supplies

locking block

TNT block

breech block pivoted below the level of the chamber

disrupt, fix, turn or block the enemy force

all-round vision block

back on the block

block off

direct vision block

surveillance vision block

trunnion block

vision block

advanced building-block for large-area exploitation

basic building block

basic building block module

building block

building block approach

building block organization concept

building-block concept