Plans for a statute of limitations which would end all prosecutions of veterans in Troubles-related cases will not come in for a year - leaving them all in limbo.
Secretary of State Brandon Lewis told the Commons he plans to bring the legislation to Parliament in the autumn.
Mr Lewis said his plan for dealing with Northern Ireland's troubled past also includes a new truth recovery body and an oral history initiative.
But Conservative former defence minister Mark Francois expressed his frustration at the lack of legislation before the summer recess.
He told Mr Lewis in the Commons: 'Our veterans, many of them in the autumn of their lives, many of them in ill health, will still have to undergo the Sword of Damocles for at least another year.
'I say to our procrastinating Secretary of State, you are the boy who cried wolf once too often.'
Mr Lewis said the statute of limitations would 'apply equally to all Troubles-related incidents'.
He added: 'We know that the prospect of the end of criminal prosecutions will be difficult for some to accept and this is not a position we take lightly.
Ex-soldier Dennis Hutchings, who faces trial in connection with a fatal shooting in Northern Ireland in 1974
Dennis Hutchings (pictured in 1978), 80, is accused of attempted murder in relation to the death of John Pat Cunningham in County Tyrone in 1974
Veterans who served in Northern Ireland are finally set to be freed from the threat of prosecution. Pictured: British soldiers in Belfast in 1976
'But we've come to the view that this is the best and only way to facilitate an effective information retrieval and provision process, and the best way to help Northern Ireland move further along the road to reconciliation.
'It is in reality a painful recognition of the very reality of where we are.'
Speaking earlier during Prime Minister's Questions, Boris Johnson said: 'The people of Northern Ireland must, if we possibly can allow them to, move forwards now.
'(Sir Keir Starmer) will know that the proposals that have been brought forward ... are measured, they are balanced and they have a wide degree of support from former Labour